Showing posts with label Saxifraga. Show all posts
Showing posts with label Saxifraga. Show all posts

Friday, February 17, 2012

List: Houseplants Native to China

Most of the caveats from this post also apply here: don't use this list for situations in which getting a plant's native range wrong might result in someone's death, I'm mostly relying on GRIN for my information, native ranges aren't always known with any kind of certainty so even the best available information may not be correct, and so forth.

For this one, we're talking about China. There will be a lot of overlap between this list and the ones for Eastern Asia (including Japan), India, Indo-China, Malesia, and Australia, just because China's sort of right in the middle of all those and plants respect political boundaries even less than people do. I apologize for being unable to find a clear public-domain map of the area; I looked for a long time, and found all kinds of stuff, none of it quite what I wanted. Instead, I have to do two different maps, one for the actual political divisions of China itself:


And the other to show where China is relative to the other countries I'll be mentioning (particularly note the locations of Korea, Japan, Taiwan, Vietnam, and Burma, as there will be a test later1):

I've circled the Ryukyu Islands because 1) they're going to come up a lot and 2) the original map didn't have them labeled.

Obviously not everybody's going to care about specifically where in the country the different plants come from, but I'm trying to provide the best information I've got for those people who do, 'cause that's the kind of guy I am.


Aglaonema cvv. (shown: cv. 'Emerald Bay') (Chinese evergreen) are usually man-made hybrids, or sports, or sports of hybrids, and consequently don't "really" come from anywhere, but a lot of the species which provided the raw material for the hybrids are from Indo-China (Cambodia, Laos, Thailand, Vietnam) and Malesia (Indonesia, Malaysia, Philippines), with a few as far north as China and as far west as India.


On-line sources disagree about the origin of Aspidistra elatior (cast-iron plant), with some saying it's from Japan and naturalized in China and others saying it's from China and naturalized in Japan. Either way, it's in the right neighborhood for what we're talking about, and GRIN says China but not Japan, so we're going to go with that until I have good reason to change it.


Chirita cvv.2 are from within the general India-China-Indonesia triangle; a lot of the plants out there are man-made hybrids (like 'Deco,' shown), but a substantial chunk of the species are from southern China.


Cycas revoluta (sago palm) is from the Fujian province,3 along the southeast coast of China, as well as the Kyushu and Ryukyu Islands in southwestern Japan.


Eriobotrya japonica (loquat) is from the Hubei and Sichuan provinces of China, as well as Taiwan and the Japanese islands of Honshu (the main island of Japan), Kyushu (SW of Honshu), and Shikoku (east of Kyushu and south of Honshu).


Ficus pumila (creeping fig) is found in southeast China.


Pilea peperomioides (Chinese money plant, Chinese missionary plant) is from the Yunnan province of China, which is in the southwest corner of southern China (it borders Burma4).


Rhapis excelsa (lady palm) is from southern China and Japan.


The range of Saxifraga stolonifera (strawberry begonia) largely overlaps with that of Ficus pumila, but also extends to Japan, Taiwan, and Korea.


Selaginella uncinata (peacock spikemoss, blue spikemoss) is from southern China.


For the recommends:

I love Aglaonemas; I don't do well with the rhizomatous types like A. brevispatha, but all the upright cane-type ags and I get along famously.

Rhapis excelsa tolerates me. I'm not sure if we actually like one another, but it's put up with a lot of crap from me and is still alive and growing.

Saxifraga stolonifera and I are going through an extended rough patch at the moment, but mostly we've gotten along; I suspect that our problems were mostly my fault, not the plant's. We'll see if I can turn that around. Either way, the plant was good enough, for long enough, that I don't have a problem recommending it, even if mine aren't so great at the moment.

The anti-recommend is tough, because I've had bad experiences with the Cycas, Pilea, and Selaginella. Cycas revoluta seems to do well for most people, though (I think my problem was possibly fertilizer-related), so I won't choose it. The Pilea was never happy with me, and even though it lived here for fourteen months, it was declining slowly the entire time. I don't know what happened. I wouldn't recommend it to other people, but it's probably still not as bad as Selaginella, which I don't recommend to anyone who doesn't have an enclosed container of some kind to keep it in, because they're very serious about their moisture levels. Also, I believe I've managed to kill this particular Selaginella despite having an enclosed container for it, which just goes to show you how awesome I am at killing things.

Not pictured:

  • Aeschynanthus longicaulis is native to the Yunnan province of China, as well as Burma, Thailand, Vietnam and Malaysia.
  • Alocasia spp. (elephant ears) in general are from Indo-China (Laos, Thailand, Vietnam) and Malesia (Brunei, Malaysia, Indonesia, Singapore, Papua New Guinea, Philippines), but some ranges extend as far north as southern China (Yunnan and Guangdong provinces).
  • Alpinia zerumbet (torch ginger) has a fairly wide range, from Japan westward into northeast India and south through Indo-China and Malaysia, which includes the southern provinces of China.
  • Ardisia crenata (coral berry) has a pretty substantial range in southeast China, but it's all over the place (Japan, Korea, Taiwan, India, Burma, Vietnam, Thailand, Philippines, Malaysia).
  • The GRIN-official range of Asplenium antiquum (bird's-nest fern) is odd and patchy, and sort of runs along the boundary between the East China Sea and the Philippine Sea. Beginning at Hong Kong, the range goes northeast through Taiwan and Japan into South Korea. I have no idea why A. antiquum has never been able to make a go of things on the mainland, but this may explain why they always turn on me when I try to grow them here in landlocked Iowa.
  • Aucuba japonica (spotted laurel, Japanese laurel, gold-dust plant) is, as the botanical name suggests, primarily from Japan, though there are also some in the Zhejiang province on China's east coast.
  • Weirdly, Carmona sp. ("fukien tea") is not from China's Fujian province, at least not according to GRIN, but it is found in the southern part of Guangdong (about as far southeast as one can go in China) and Hainan (as far south as you can go in China). I wonder who fucked that one up. It's also found in the Ryukyu Islands of Japan, Taiwan, west to India and Sri Lanka, south as far as Queensland (Australia), and through Indonesia and Malaysia into the Philippines.
  • Cissus discolor (begonia vine) is naturally found in south central China, in the provinces of Sichuan and Yunnan, as well as from India eastward to the Philippines.
  • Colocasia spp. (elephant ears) are from south and southeast China, south through Laos and Vietnam, Malaysia and Indonesia. C. esculentum specifically has been so widely cultivated that we don't know where it came from, though it's a pretty safe bet that it originated somewhere in that general area too.
  • Cymbidium cvv. are largely hybrids, made by aliens from the seventh moon of the planet Zecuponia III and introduced to earth via an underground network of florists and hobbyists who are actually disguised aliens, secretly observing humanity in anticipation of the day when they can destroy all humans. Why they need to observe first, I have no idea -- apparently they think there's something about us that isn't obvious on the surface.5
  • GRIN was unusually non-specific about the distribution of Cyrtomium falcatum (holly fern); it looks like it's basically the southeast coast of China, north to Japan and south to Vietnam, plus a population all by itself off in India somewhere.
  • Various species of Davallia (rabbit's-foot fern) occur in different spots all over the world; at least one makes its home in southeast China, though I don't know which species.
  • Dendrobiums are mostly man-made hybrids at this point, though some species specimens are out there to be had if that's what gets you excited. If you're looking in China, check the south and southeast provinces (Yunnan, Guangxi, Guangdong, Guizhou, and all that); otherwise you can find hot Dendrobium action from south China all the way to northern Australia, from India to the Philippines.
  • Dioscorea bulbifera (air potato) is another one with a native range that's just a mess: you start in west Africa with Guinea, the Ivory Coast, Ghana, Liberia, and all those along that edge there, including landlocked Burkina Faso, to where the coastline begins to curve to the south at Cameroon and Nigeria, then stop. Go to the east side of Africa and pick up Tanzania, Uganda, and Madagascar, as well as Mauritius and Reunion Island, to the east of Madagascar. Then pick up again at Sri Lanka, just off the southern tip of India, north and east through India, Bhutan, and Nepal, and from there it's all the usual places: south and east China, all of Indo-China, Malesia (Indonesia, Malaysia, Papua New Guinea, Philippines), south into north and west Australia. I don't know if it's safe to assume that there might be other spots that GRIN doesn't mention, that fill in the gaps in the range (like maybe central Africa, if nothing else), or if it really has a bunch of isolated populations like this.
  • Of course some Drosera spp. (sundews) are from China; Droseras are basically everywhere. Seriously. I'm not even going to try.
  • I'm not going to try to describe the natural range of Ensete and Musa spp. (banana) either. There are both Ensete and Musa species native to China, some as far north as Tibet (Xizang) but mostly in the same southern and eastern part of China that everything else is from.
  • Ficus benjamina (weeping fig, ficus tree) has a large range stretching from northeast Australia all the way north to south and east China, west to India, east to the Solomon Islands, and covering everything in between (Indonesia, Papua New Guinea, Philippines, Indo-China, etc.).
  • Ficus microcarpa (Cuban laurel) has basically the same range as F. benjamina, though it extends a bit further north (to the Ryukyu Islands of Japan) and a bit further to the southeast (Palau, New Caledonia, etc.)
  • Gardenia jasminoides (gardenia) is native to the eastern edge of Southeast Asia. From north to south: Japan, Taiwan, China, Vietnam.
  • Gloriosa superba (glory lily, gloriosa lily) is another species that splits its time between Africa and Southeast Asia. It only just barely qualifies for this list; GRIN says it's native to a bit of southern Yunnan province (which is in southwest China). Most of its Asian range is south and west of that, though: south through Indo-China and Indonesia, west until you hit India. The African part of the range covers most everything down the east side of Africa (Ethiopia / Somalia / Sudan, Uganda / Kenya / Tanzania, Mozambique, Botswana, South Africa, and a little ways up the east side, as far as Namibia). There's also supposed to be a little population all by itself in Senegal, which is as far to the west as you can go and still be on the African continent; I sort of wonder if the Senegalese bit is an error on someone's part.
  • Hoya carnosa is native to southern China, as well as Taiwan, the Ryukyu Islands of Japan, and Kyushu (Japan), India, Vietnam and Malaysia. I don't know if the Indian population is actually separate or if part of the range was left out.
  • A few other Hoya species claimed to be native to China: Hoya chinghungensis, Hoya dasyantha, Hoya fungii, Hoya globulosa, Hoya griffithii, Hoya juangoiana, Hoya lii, Hoya lyi, Hoya manipurensis, Hoya mengtzeensis, Hoya motoskei, Hoya multiflora,6
  • Hoya ovalifolia, Hoya pandurata, Hoya picta, Hoya pottsii, Hoya salweenica. I didn't dig into the details on most of these, but they were on the list; check 'em out yourself if you're interested.7
  • Jasminum officinale is a welcome change of pace -- it's actually from western China (Guizhou, Sichuan, Xizang/Tibet, Yunnan) and its range extends to the west from there (east to west, in order: Bhutan, Nepal, India, Pakistan, Tajikistan, Afghanistan, Iran, Georgia, Turkey).
  • Jasminum polyanthum is strictly Chinese, from the south/central provinces of Guizhou, Sichuan, and Yunnan. I'm appreciating that one, too, 'cause it's easier to type out. You're totally bored with this by now, right?8
  • Lemmaphyllum microphyllum is an oddball epiphytic fern; GRIN didn't have a listing for it, but other sources suggest a range from Korea south through Japan, Taiwan, and the Philippines, either stretching west into India or with a separate population in India: I never know if my sources are just being lazy with this sort of thing or if there are actually isolated populations of plants all over the place.
  • Liriope spicata (lilyturf, monkeygrass) is another down-the-coaster: Japan, Taiwan, most of China, south into Vietnam.
  • Livistona chinensis (Chinese fan palm) is also a down-the-coaster: Japan, Taiwan, south China.
  • Ludisia discolor (jewel orchid) comes from the southern coast of China, south through Indo-China (Burma, Thailand, Vietnam), Indonesia, and Malaysia.
  • Murraya paniculata (orange jasmine, orange jessamine) can be found naturally in the southern couple rows of provinces of China, east to Taiwan and the Philippines, west to India and Sri Lanka, south as far as the north coast of Australia, and some of the western and southwestern Pacific islands. Plus, obviously, all points in between (Indo-China, Indonesia, Malaysia, Papua New Guinea, and so forth).
  • Nandina domestica (heavenly bamboo) is from China and Japan; I don't know what parts of China specifically, but with Japan, it's the three southern large islands (Honshu, Kyushu, and Shikoku).
  • Neofinetia spp. weren't in GRIN, but another source puts them in east Asia, specifically Korea, Japan, and China.
  • I don't know if anybody tries to grow Nephrolepis hirsutula (scaly sword fern) indoors or not, but GRIN says Guangdong, China is part of the natural range, along with Thailand, Malaysia, and the north coast of Australia.
  • I've gotten the general impression that Nerium oleander (oleander) is primarily a Mediterranean and west Asian species, but GRIN puts its native range along an east-west line that stretches from Morocco, in northwest Africa, through north Africa, the Middle East, and India, with a bit in Yunnan province of southwest China.
  • GRIN claims Origanum spp. (oregano) are native throughout Europe, south and east into Turkey, Iran, and Georgia, and then small areas of India and China (specifically the provinces of Sichuan, Xizang/Tibet, and Yunnan, all in southwest China). Whether this refers to a fragmented range, multiple species, or inadequate data is unclear.
  • Osmanthus fragrans (fragrant olive, sweet olive) is at home from northeast India, Nepal, and Bhutan east into northern parts of Burma/Myanmar and north Thailand, and southwest China. GRIN also lists the southern part of the island of Kyushu, in Japan, but that's a long way from the rest of the plant's range, so I'm not sure what to do with that.
  • Paphiopedilum cvv. (slipper orchids) are mainly found in Indo-China, Malaysia, and Indonesia, but some species are found as far north as southern China.
  • Pellionia repens (watermelon begonia) is native to Indo-China, west to India, east to the Philippines, south to Indonesia, and north to Yunnan and Hainan provinces in south/southwest China.
  • Perilla frutescens (beefsteak plant, shiso) may or may not qualify as a houseplant; it sort of seems like it ought to be possible, but I haven't heard of anyone ever actually growing it indoors. It's found in much of southern and coastal China, though, as well as throughout Indo-China, Taiwan, much of Japan and Korea, northern India, Bhutan, Nepal, as far west as Pakistan.
  • The range of Phaius tankervillae (nun orchid) is bounded by southern China and Taiwan on the north, northeast India on the northwest, Sri Lanka on the west, northern Australia on the south, and the southwestern Pacific islands on the southeast, as well as most of Malesia and Indo-China.
  • Phoenix roebelenii (pigmy date palm) has a fairly small native habitat, limited to north Laos, northwest Vietnam, and the Chinese province of Yunnan, in southwest China.
  • Phyllostachys spp. (bamboo) are all found in China; their suitability as houseplants is questionable, but people do attempt it.
  • As I understand things, the natural range of Pilea cadierei (aluminum plant) is even more in question than that of most domesticated plants, because nobody's seen it in the wild for quite a while, but it's believed to have originated in Vietnam, and GRIN says there are some in southwest China (Yunnan and Guizhou) as well.
  • I'd warn you not to try Pogonatherum paniceum (house bamboo) indoors, whatever common name marketers are trying to put on it, but Tropicos appears to be claiming9 that the natural range extends from Pakistan in the west all the way through India, Indo-China and China, south into Malaysia and Indonesia.
  • Polypodium formosana (=Polypodium formosanum) (caterpillar fern, naked rabbit's foot fern) is from China, Japan, and Taiwan, according to Tropicos. ("Formosa" is the Portuguese word for Taiwan.)
  • Polyscias fruticosa cvv. (ming aralia) has the whole India / China / Indo-China / Malesia thing going on, plus Fiji in the southeast.
  • Pteris cretica (cretan brake fern) is from everywhere, according to GRIN: most of equatorial Africa, south Africa, and Madagascar (plus Algeria, for some reason), western and southern Europe, Turkey, Yemen, northern India, Indo-China, China and Japan. Plus an incongruous bit in Guatemala and southern Mexico, which I'm thinking is maybe a mistake.
  • Pteris vittata (chinese brake fern, ladder brake fern) is similar to P. cretica, though without Europe or the Mexico/Guatemala bit. P. vittata is also supposed to be present in the wild in three different Australian states, none of which share borders: Queensland (NE Australia), Western Australia (west), and Victoria (SE Australia). I don't know what's going on there.
  • Radermachera sinica (China doll) is native to southern China, Taiwan, and the Ryukyu Islands of Japan, which most sources agree on, plus GRIN adds Vietnam, Burma/Myanmar, and a teeny bit of northeast India.
  • Schefflera arboricola (umbrella tree) is from two islands in the South China Sea: Taiwan and Hainan. I expected more, but that's all GRIN said.
  • Solenostemon scutellarioides (=Plectranthus scutellarioides, Coleus blumei, coleus): India, China (the SE corner -- Fujian, Guangdong, and Guangxi), Indo-China, the Philippines, and then all points south of that line until you hit the north coast of Australia, more or less.
  • The natural range of Tacca chantrieri (bat plant) runs from India and Sri Lanka in the west, to pretty much all of Indo-China, plus Malaysia just to the south of Indo-China and most of southern China.
  • (We're almost done!)
  • The natural range of Trachelospermum jasminoides (confederate jasmine, star jasmine) pretty much includes everything that touches either the South China Sea or the East China Sea, with two exceptions: Korea, Japan, China, and Vietnam, but not the Philippines or Taiwan. At least, not according to GRIN.
  • GRIN says Trachycarpus fortunei (windmill palm, Chinese windmill palm) is found throughout central and eastern China, as well as some of northern Burma/Myanmar.
  • Southwest China (Guangxi, Guizhou, and Yunnan) is at the northeast tip of the range for Trevesia palmata (snowflake aralia, snowflake plant), which is primarily an Indo-Chinese (Cambodia, Laos, Burma/Myanmar, Thailand, Vietnam) species. A little bit of northeast India and neighboring countries (Nepal, Bhutan, Bangladesh) are included in the range too.
  • Vandas are mostly man-made hybrids these days, but some species occur in Yunnan province, in southwest China. The rest of them are spread throughout a India / Philippines / Indonesia triangle.

Borderline cases:
  • Citrus, Citrofortunella, and Fortunella spp. (citrus, orange, kumquat, lime, lemon) are thought to have originated somewhere in the general China / Indo-China / India area, but nobody's really sure, because they've been so widely cultivated.
  • Farfugium japonicum 'Crested Leopard' may or may not count as a houseplant. (I've heard of it being done, but never actually seen it or attempted it, so I don't know how well that works out for anybody.) It is, nevertheless, native to Japan, north to Korea, south to Taiwan, and in southeast and central China.
  • Hemionitis arifolia (heart fern) isn't included in GRIN, but Exotic Rainforest says "primarily from Laos, Sri Lanka, Vietnam and possibly China, Taiwan and other nations in tropical Southeast Asia." So maybe it belongs on the list, and maybe it don't.
  • Hoya kerrii is possibly native to China: one source said China, Japan, and Thailand; another said Thailand and the Philippines.
  • Hoya lacunosa cvv. is possibly from south China, according to Google; it's more definitely present in Thailand, Malaysia, and Indonesia.
  • Microsorum steerii (oil fern) and M. thaliandicum aren't in GRIN, but both are claimed to be present in southern China, Taiwan, and Vietnam. M. thailandicum is also, as one might expect, found in Thailand.
  • Nepenthes spp. (pitcher plants) are mainly from warmer climates to the south of China, but at least one, N. mirabilis, can be found in Guangdong and Hainan, in south China, as well as south through Indo-China, Malaysia, Indonesia, Queensland in northeast Australia, and a few Pacific islands (Micronesia, Palau). I don't know if N. mirabilis is one of the species people try to grow indoors or not.
  • Phalaenopsis cvv. (moth orchid) are mostly hybrids, as far as what's available to grow as a houseplant. A few species are supposed to live in parts of China (particularly the large southern island of Hainan), like P. hainanensis (Hainan and Yunnan), P. braceana (Yunnan), P. deliciosa ssp. hookeriana and P. mannii (eastern Himalayas to SW China), and a handful of others, but it's not clear how widespread any of these are in cultivation, and my main source for this is Wikipedia, making it even more doubtful.

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Image credits:
SE Asia map: Cropped version of a map from the UT-Austin Perry-CastaƱeda Library Map Collection, with the addition of a label for the Ryukyu Islands
China map: Wikimedia Commons

1 Being a product of the U.S. educational system, I was embarrassingly ignorant of a lot of this region before I started working on this post. I'm a little clearer on southeast Asia now, plus I can name, spell, and indicate the approximate location of three and a half Chinese provinces (Fujian, Hainan, Yunnan and sometimes Guangdong), which I couldn't do before.
2 The genus is in the process of being taxonomically reorganized, so I'm not sure whether this will be true in the future, or for how long. Try as I might, I can't actually keep up with all of the taxonomic stuff that's going on lately.
3 Fujian is also sometimes rendered "Fukien" when spoken by English-speakers, hence "fukien tea" (Carmona sp.)
4 Which is also called Myanmar; whichever name you use for the country will inevitably offend someone, and I, not having any idea about the issue(s) involved and very little motivation to put in the research at the moment, have no idea whose side I'm on. Wikiposedly the U.S. government prefers "Burma," so I'm going with Burma.
5 Just checking to see if you're reading this, and incidentally amusing myself a bit -- this gets kind of tedious to type out. Plus I keep having to look at maps. Cymbidiums in fact are mostly man-made hybrids, but the original species are found inside of an India-Korea-New-Guinea triangle, including parts of China but apparently excluding the Philippines.
6 Questionable -- the source for this had it as part of a list of Chinese natives but didn't include China on the more specific page for the plant, so I don't know.
7 There's also a good chance that some of those names are synonyms for other names on the list.
8 Well, suck it up, 'cause we're only up to the letter J.
9 (Tropicos and I have some problems with one another.)


Saturday, September 24, 2011

Rumble Among the Jungle, Matches 1.13-1.16

Rules and Stuff
1) It's probably possible to vote more than once per poll, but please don't. If I believe that someone is voting repeatedly, I will throw out those results, repost the poll, and seriously question that person's priorities.
2) If you want to link to a poll on Twitter / Facebook / your blog / whatever and encourage your friends to come and pump up the support for your favorite plants, you are encouraged to do so.
3) You are also encouraged to leave comments on Rumble posts, if so moved.
4) All photos will enlarge if opened in a separate window/tab.
5) You can choose which plant is "best" according to whatever criteria you decide for yourself. My personal process is a bit convoluted.1
6) All polls will be open for three days.

Match 1.13
Ficus maclellandii (long leaf fig, alii fig) vs. Schefflera elegantissima (false aralia, Dizygotheca elegantissima)

(Ficus maclellandii.)


(Both Schefflera elegantissima.)






Match 1.14
Guzmania cvv. vs. Strelitzia nicolai/reginae (white/orange bird of paradise)

(Various unidentified Guzmania cvv.)


Clockwise from left: Strelitzia nicolai, S. reginae flower, S. reginae.






Match 1.15
Philodendron hederaceum cvv. (heart-leaf philodendron) vs. Syngonium podophyllum cvv. (arrowhead vine, nephthytis)

Clockwise from top left: Philodendron hederaceum 'Brasil,' P. hederaceum micans, NOID, P. hederaceum 'Aureum' or something similar, species, P. hederaceum 'Frilly Philly.'


Clockwise from top left: Syngonium podophyllum 'White Butterfly' (?), NOID (possibly 'Confetti'), 'Pink Margarita,' NOID.






Match 1.16
Dracaena fragrans cvv. (corn plant) vs. Saxifraga stolonifera (strawberry begonia)

Clockwise from top left: Dracaena fragrans 'Massangeana,' 'Sol,' 'Massangeana,' 'Sol,' 'Massangeana.'


(Both Saxifraga stolonifera.)






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1 I'm deciding according to a hypothetical situation in which all of my houseplants are gone, as are all the other houseplants of the world, except for one producer/supplier/retailer. Said person is offering to restock me with one or the other of the plants in question but refuses to give me both. Which one would I choose?


Thursday, January 13, 2011

List: Plants for Offices

I've been asked by a reader to suggest some plants that would work well in an office setting. Unfortunately, the list I came up with is kind of boring, because offices, taken as a group, present a very specific kind of unnatural environment. Generally, one is talking about low light, very low humidity, and occasional drought (if the office is closed on weekends and holidays, as is typical). Occasional cold may also be a problem in some places, because not all businesses bother to heat buildings which aren't in use, like on weekends, nights, and holidays. It's not a combination that's good, or even tolerable, for very many plants.

Obviously people whose workspace has a window, or who can add a small desk light, have more options to consider, but for purposes of this list, I'm assuming you can't add a light.

Chinese evergreen, Aglaonema cvv. (shown: 'Maria') Some varieties are better with cold than others, and there's no easy way to tell which are and which aren't, so this isn't a great choice for offices where the heat is turned off on the weekend, but they're good with drought, low humidity, and low light. They typically need to be cut back every couple years, and they're slow to resprout, so this may not be a good choice if you're looking for a plant to stay in the same spot for years and years.


Shoebutton tree, Ardisia elliptica. Very well adapted to office conditions in general, though drought may result in some leaf drop. The biggest drawback to Ardisia as an office plant is that they're very fast growers: they need frequent repotting, and the growth habit becomes less compact once they hit maturity, though they remain easy to care for.


Cast-iron plant, Aspidistra elatior. Sort of the opposite problem from Ardisia: Aspidistras are very slow-growing plants, and take a long time to get around to doing anything. On the other hand, low light, low humidity, occasional cold, and occasional drought are all taken in stride. Hot, dry offices may encourage spider mites, but that's about it for cultural problems. Aspidistras tend to be hard to find, and are more expensive than most other plants of the same size when you can find them, though.


Clivia miniata. Wasn't sure whether to include Clivia on this list or not: though dry air is well-tolerated, and they actually require cooler temperatures and drought for part of the year in order to bloom, light is potentially a problem. Ideally, these need bright indirect light, though plants can survive in less. In an office setting, you should probably not expect flowers, though they could make perfectly fine foliage plants.


Pothos, Epipremnum aureum. (shown: 'Marble Queen') Dry air and occasional missed waterings aren't problems. Low light is fine, though variegated varieties like 'Marble Queen' may revert to all-green if the plant is in too dark of a spot. Cold below 50-60F (10-16C) will slow or stop growth, and prolonged cold can damage or kill plants, depending on how cold and for how long, but most people, in most offices, should be able to grow pothos. May need to be cut back every few years for best appearance.


Heart-leaf philodendron, Philodendron hederaceum. Fine with low light, low humidity, occasional drought. Somewhat more cold-tolerant than pothos, but otherwise very similar in form and care.


Snake plant or mother-in-law's tongue, Sansevieria trifasciata. (shown: NOID birdsnest-type) Very tolerant of drought, though if you have helpful co-workers who water it for you, it may not last long, especially in combination with cold. Low light and low humidity are fine. In darker locations, leaves tend to become weak and floppy. The shorter birdsnest types seem to be touchier than the versions with longer leaves, particularly when it comes to overwatering.


Strawberry begonia, Saxifraga stolonifera. Extended drought is a problem, but dry air and low light are tolerated well, and cooler temperatures don't appear to be a problem at all, at least not the degree of cold one would expect in a reasonably large, insulated building.


Peace lily, Spathiphyllum cvv. Boring, boring, boring, but cold-tolerant into the 40s (F; 4-9C), low-light-tolerant to make you weep, and unbothered by dry air, whatever people will tell you. The only thing is: they don't allow a lot of margin for error when it comes to watering, and either you know how to water one or you don't. (The answer, for the record, is to wait until the day the leaves first start to droop, then water thoroughly, drain off the excess, and then do not water it again until you see the leaves begin to droop again. Letting the plant get too dry between waterings will cause some older leaves to drop, and not letting it get dry enough will lead to dead leaf tips and margins.) Flowers are most likely following a dose of fertilizer, but can happen at any time.


Arrowhead vine, Syngonium podophyllum. I'm not a huge fan of Syngoniums, because it's been my experience that unless one goes to a lot of effort, the best they're ever going to look is the moment when you buy them. Once they start to vine, which is usually within a few months, the new leaves get smaller, the plant's form gets stranger, and then you either learn to live with it or you cut back the vining bits to the base and hope they resprout in a timely manner. However, Syngoniums are still technically suitable for office settings, being fairly tolerant of missed waterings (or excessive waterings, for that matter, unlike a lot of the plants on this list), dry air, and low light. Cold may slow Syngonium down, but is unlikely to kill them.

For the recommends, well, these are all pretty sturdy plants, so doing recommends is kind of unnecessary. I've personally had the most positive experiences with Aglaonema, Ardisia, and Philodendron, and the most trouble with Sansevieria. Your results may vary.

Not pictured:
  • Ardisia crenata (coral berry) As for A. elliptica.
  • Chlorophytum comosum (spider plant) Best in offices that never get cold and have pretty good light. Minerals, especially fluoride, can cause leaves to get dead tips. Keep away from heat / air conditioning vents.
  • Chlorophytum x 'Fire Flash' (Fire Flash, Green Orange, Mandarin plant) As for C. comosum; keep out of direct sun.
  • Dieffenbachia cvv. (dumb cane) Warm, bright offices only. (Doesn't need sun, just bright indirect light.) Grows fast and needs to be cut back regularly; the larger varieties seem to be easier on all counts.
  • Dracaena deremensis cvv., including 'Janet Craig,' 'Warneckei,' 'Lemon-Lime'/'Goldstar,' 'Art,' 'Janet Craig Compacta,' 'Malaika,' etc. Not good for offices with helpful watering buddies. Mineral buildup or overwatering can lead to dead leaf tips and margins. Also not good for offices which may go below 60F/16C.
  • Dracaena fragrans (corn plant) As for D. deremensis cvv.
  • Dracaena marginata (Madagascar dragon tree) As for D. deremensis cvv., plus overhead light is much preferred to light from the side -- side-lit plants tend to look droopy, as the leaves adjust their position to take advantage of as much light as possible.
  • Dracaena sanderiana ("lucky bamboo," ribbon plant) Ugh. If you really have to. It's probably best to grow this in soil, rather than water, and if you do grow it in water, you'll need to do regular complete changes of the water, and add a little fertilizer from time to time. I don't think they're particularly good about cold, but they'll survive dry air, drought, and low light just fine.
  • Radermachera sinica (China doll) Generally tolerant of dry air, temperature extremes, and low light, but an aggressively fast grower, likely to look gangly once the dwarfing hormones wear off, and somewhat fussy about water, so definitely not ideal.
  • Rhapis excelsa (lady palm) Mineral buildup and dry air can cause burnt leaf tips, so these are also not ideal office plants, but they're flexible on temperature, drought, and light. They do need to be repotted every couple years, at least, to avoid root rot.
  • Sansevieria cylindrica ("wisdom horns") Tolerant of office conditions generally (though don't push it on cold unless you can also keep it pretty dry), though it would be happier in direct sun. Almost certain to be slow-growing in an office setting.
  • Zamioculcas zamiifolia (ZZ plant, eternity plant) Another one to avoid if you have helpful co-workers or if the office is ever unheated during cold spells. Otherwise very adaptable but slow-growing. Plants grown in very low light will produce weak, pale, stretched leaves.


Monday, August 30, 2010

List: Houseplants With Circular (or Nearly Circular) Leaves

It occurs to me that I could do these list posts differently: instead of telling you what that the criterion is and then listing the plants that fit it, I could give you the list of plants and have you tell me the criterion. Basically "$10,000 Pyramid" for houseplants.

I won't do it that way, because it'd screw with anybody trying to google their way to a list of plants that had the criterion in question. But it'd be amusing. To me.

This one was unexpectedly difficult: I anticipated that I'd find circular leaves all over the place, but actually there are very few. Many otherwise-promising candidates actually have leaves which come to a point at the tip (there's a reason why we call it "leaf-shaped"), or are a little a little too stretched-out to call "nearly circular," or whatever. An even larger number among the succulents had almost round leaves, but with a thick petiole connecting them to the stem (like Crassula ovata or some of the Aeoniums and Echeverias), so the overall shape was more spoon-shaped than circular, and I didn't count them. But so here's what I came up with:

Calathea rotundifolia.


Cissus rotundifolia.


Dischidia nummularia 'Pebble Beach.'


Peperomia obtusifolia variegata.


Pilea nummulariifolia.


Plectranthus verticillatus.


Polyscias scutellaria.


Saintpaulia ionantha cvv.


Saxifraga stolonifera.


Soleirolia soleirolii.

Perhaps to make up for the difficulty of finding a set of ten plants, the recommends are exceptionally easy for this list. Peperomia obtusifolia variegata, Saxifraga stolonifera, and Plectranthus verticillatus are all very easy and tolerant plants. Peperomia prefers somewhat warmer temperatures than the other two, and Plectranthus grows so quickly that it requires a little more maintenance, but they're all pretty easy, 2.0 or below on the PATSP difficulty scale.

The anti-recommend winds up being a tie between Calathea rotundifolia and Soleirolia soleirolii, both of which need a lot of moisture in the air and soil in order to grow well. Soleirolia works out well in terrariums, where it can spread out and form a mat. Calathea maybe would do well in a terrarium too, but it'd need a pretty big terrarium, as C. rotundifolia gets to be a big plant. Davesgarden.com recommends a spacing of 18-24 inches (46-61 cm) between C. rotundifolias when planted outdoors, suggesting that they can get at least that big across. Your average planted fish tank isn't going to be able to accommodate that.

Not pictured (please suggest others if you think of some):

Alluaudia procera, sort of (some specimens seem to have more of a tendency toward a teardrop or oval shape, but others have round leaves; this is maybe a difference in conditions, or possibly the plant is just naturally variable)
a few Begonia cvv. are kinda roundish, if not actually circular (especially the extremely spirally cultivars like B. rex-cultorum 'Escargot')
Breynia disticha 'Roseo-Picta'
Calathea makoyana, roseo-picta, and some other spp.
Coccoloba uvifera
Ficus deltoidea, barely (often more triangular than round, but there seems to be a lot of variation between specimens, and some produce rounder leaves than others)
Ficus pumila, barely (usually more heart-shaped or oval)
Hoya kerrii, very occasionally (much stronger tendency to be heart-shaped, though sometimes leaves will have less of a notch at the tip)
Hoya obovata, most of the time
Lemmaphyllum microphyllum, sometimes (often more oval or leaf-shaped)
Maranta leuconeura kerchoviana, sometimes (usually more oval: younger plants tend to have rounder leaves)
Muehlenbeckia complexa
Pellaea rotundifolia, frond leaflets
Peperomia argyreia
Peperomia 'Jayde'
Peperomia prostrata
Peperomia urocarpa
Pilea depressa
Pilea glauca
Pilea involucrata 'Norfolk'
Pilea microphylla? (leaves are nearly too small to really tell what shape they are)
Pilea peperomioides
Plectranthus amboinicus
Plectranthus ciliatus
Plectranthus oertendahlii
Polyscias balfouriana
Portulacaria afra
Sedum sieboldii
Senecio rowleyanus (More spherical leaves than circular ones, but close enough.)
Sinningia cvv.
Tropaeolum majus (Though nasturtiums are not very often grown indoors, and they're super-prone to spider mites when they are.)
Xerosicyos danguyi


Thursday, May 27, 2010

List: Easy, Attractive Houseplants for Beginners

The New York Times semi-recently solicited houseplant-related questions for Tibor Fuchs (the President of the Metropolitan New York Chapter of the Indoor Gardening Society of America1) to answer, which he subsequently did, in three parts (the first of which is here). I happened to see the list of questions he was working from during the brief period when they were being solicited, and was struck by how many of them were basically, please suggest a houseplant for me that's easy to care for.

Many of the questions then went on to request more specific plants that would survive with no light, bloom spectacularly, year-round, with enormous, brilliantly-colored, scented flowers, and be non-toxic to pets and children, which I assume is why Fuchs didn't bother trying to answer those questions, but the basic request was just, over and over, tell me the name of a plant I won't kill. Therefore, this list. In fact, I suspect I could do nothing but answer this question, every single day, and get more blog hits than I do from writing about other stuff.

There have to be some disclaimers, first.

"Easy" depends on what you think you're supposed to do, and I can't know, sitting here in my office and probably never having met you, what you think you're supposed to do. I also can't be certain you're going to acquire your plant from a reputable source that will sell you a healthy plant. But these are still your better bets, I think.

"Attractive" is also a problem. I don't know what you like. I tried to pick a set of plants that were diverse and colorful, but you might hate them all. I really think that's more your problem than mine, though.

Aglaonema cvv. ("Chinese evergreen") This is 'Peacock,' but there are many, many other varieties which are also good. I recommend any of them, but particularly 'Emerald Bay,' 'Golden Bay,' 'Maria,' 'Diamond Bay,' 'Jewel of India,' and 'Brilliant.'
If you killed it anyway: you probably overwatered or got it too cold.



Chlorophytum x 'Fire Flash.' ("Fire Flash," "Mandarin Plant," "Green Orange")
If you killed it anyway: you probably either had it too hot or in too much direct sun.



Dracaena deremensis 'Lemon-Lime' or 'Goldstar' (shown) or other cvv. ('Art,' 'Dorado,' 'Janet Craig,' 'Janet Craig Compacta,' 'Jumbo,' 'Ulises,' 'Warneckei,' etc.)
If you killed it anyway: you probably overwatered or got it cold.



Epipremnum aureum 'Neon' (shown) or other cvv. ("pothos") Includes the white, gray and green 'N'Joy,' the white-marbled 'Marble Queen,' and the yellow and green species.
If you killed it anyway: you probably overwatered or got it cold.



Euphorbia tirucalli and cvv. ("pencil cactus," "firesticks")
***This plant's sap is dangerous if it contacts the skin or (especially!) eyes. Though a very tolerant houseplant, I do not recommend it for homes with pets or children, or advise putting it in an area where it's likely to be knocked over or brushed up against a lot. Get it in the house, and then don't fiddle with it.***
If you killed it anyway: you probably didn't have it in enough light or overwatered.



Haworthia attenuata (shown) and other Haworthia spp. ("zebra plant," "fairy washboard")
If you killed it anyway: you probably overwatered or had it in insufficient light.



Peperomia obtusifolia cvv. ("baby rubber plant") This is the variety 'Gold Coast;' other varieties are solid green or yellowish-green with darker speckles.
If you killed it anyway: you probably overwatered or got it too cold.



Plectranthus verticillatus. ("Swedish ivy") A variegated version exists, but it tends to revert to solid green pretty quickly.
If you killed it anyway: you probably overwatered or had it in insufficient light.



Saxifraga stolonifera. ("strawberry begonia") A variegated version exists but is slower-growing and a little more delicate, I hear. (Haven't grown it myself.)
If you killed it anyway: you probably underwatered.



Yucca guatemalensis. ("spineless yucca") This is a variety with gray stripes no the leaves; a solid-green type is the most common. There is also a variety with yellow stripes along the leaf edges.
If you killed it anyway: you probably overwatered or had it in insufficient light.

Anybody who's grown a significant number of houseplants would come up with a different list of plant recommendations, which wouldn't necessarily overlap much with the above. Generally speaking, I think beginners would do well with any plant that has a PATSP difficulty level below about 2.5 (see the sidebar for a list of plants with difficulty levels), though there are a few which are quirky in ways that wouldn't be well-suited for someone new to houseplants.

Of the above set, the three I would most recommend to someone new to houseplants would be Plectranthus verticillatus, Yucca guatemalensis, and Aglaonema cvv. This is because:

Plectranthus verticillatus is especially good for beginners because it grows very quickly: it's not quite instant feedback, but it's pretty close, and since it's an easy plant, most of the feedback will be positive, so it's a good confidence-booster. It's also very tolerant of dry air, temperature fluctuations, and fluctuations in moisture level. It does need fairly bright light, but it'll give you feedback on that, too -- in bright enough light, the stems will turn reddish-purple; in too much light, the leaves will bleach out slightly to a lighter, yellowish green. Finally, the last reason it's a good plant for beginners is that it's not terribly common in stores. It's very easy to start new plants from cuttings, so it tends to be one of those plants that gets passed from person to person. This means that if you manage to get a plant, you probably also already know someone who's a decent indoor gardener, from whom you can learn.

Yucca guatemalensis is a good plant for beginners because it handles neglect very, very well. About the only hard and fast requirement is that you provide bright light -- plants can survive without actual direct sun, but ideally you should have at least a little every day. They are, in any case, not good plants to stick in a corner and forget about. They'll grow best with regular, thorough, but infrequent waterings. The one warning about these is that you should be sure to get a plant that's solidly rooted. An awful lot of the plants we see in stores up here are thick sections of cane that were stuck in soil and shipped out as soon as they began to root and sprout some leaves. This means that their root system may not be very well-developed, and a rootless Yucca is going to be very touchy about overwatering. This is temporary, as they will grow new roots, but you should check to make certain the soil is dry (even well below the surface of the pot) before watering. If at all possible, try to get a plant that's already got a substantial root system, too, obviously. Yucca guatemalensis is kind of a sentimental favorite for me, too, because at the moment my longest-lived indoor plants (about 12 years) are Yuccas.

Aglaonema cvv. are slow-growing plants with variegated foliage in many different kinds of patterns and colors. They handle low light better than most plants, though bright indirect light is still best, and do best when allowed to dry out almost completely, then watered thoroughly. Some varieties are sensitive to cold temperatures (anything below about 60F/16C), though breeders have been working on this, and some of them can handle temperatures down to freezing (32F/0C) for short periods. There's no good way to know how cold your plant can get, short of trying it, so it's best to keep your plant above 60F/16C unless you know for sure that it can go colder. Aside from their issues with cold and overwatering, though, they're great plants, and arguably one of the prettier options from this list.

Not pictured:

Aechmea fasciata
Alworthia 'Black Gem'
Ardisia elliptica
Chamaedorea metallica
Chlorophytum comosum
Dracaena fragrans 'Massangeana'
Dracaena marginata cvv.
Dracaena reflexa 'Riki'
Euphorbia trigona
Ficus maclellandii
Hoya lacunosa

Philodendron hederaceum cvv.
Rhapis excelsa
Sansevieria trifasciata
Spathiphyllum cvv.
Synadenium grantii
Tradescantia pallida
Tradescantia zebrina
Zamioculcas zamiifolia

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1 The President! Even though he only has 300 or so houseplants!