Wednesday, 3 December 2014

List of my endangered plants

Let's hope the world's endangered plants.
These are some of them I have been growing and seeking to propagate.

I have a few of these:
  • Cabbage tree - Dendroseris litoralis, critically endangered, due to very small habitat and destruction by goats, quite rarely cultivated, sensitive to aphids, monocarpic growth makes it hard to propagate (a single stem which flowers only after decades then dies), but very easy from seed, likes mild temperature and air moisture, well-drained rich soil, strong indirect light, could be grown in oceanic climates with frost-free mild climates (Robinson Crusoe island)
  • Deppea splendens, extinct in the wild, rarely cultivated and usually only in California, can be propagated by cuttings or seeds, seedlings need careful handling, especially moisture, then it is rather easy to grow, strong indirect light, could be grown in mild to warm frost-free climates, and slightly moist (Mexico cloud forest)
Deppea splendens, an astonishing plant, and yet extremely rare

I have perhaps a couple of these:
  • Kakabeak Clianthus puniceus, critically endangered, ocasionally cultivated locally, easy from seed after scarification, can be propagated by cuttings, dry tolerant, a bit prone to thrips, perhaps could be grown in frost-free Mediterranean climates or semi-moist climates (New Zealand)
  • Bauhinia bowkeri, endangered, possibly rarely cultivated, seed is easy to germinate after scarification (seedlings are prone to fungi), easy to growth, have tried cuttings but failed, perhaps could be grown in nearly frost-free Mediterranean climates or similar (South Africa)
  • Pinus torreyana, critically endangered, but somewhat cultivated locally, well-drained soil, germination improved after cold stratification (California), could be grow in Mediterranean climates
  • Pinus maximartenzii, endangered (Mexico), perhaps could be grown in Mediterranean climates
  • Aloe peglerae, critically endangered, but somewhat cultivated, easy to germinate
  • Aloe flexifolia, critically endangered, but somewhat cultivated, easy to germinate
  • Aloe dichotoma, vulnerable, but rarely cultivated
I have only one exemplar of these, and somewhat struggling growing:
  • Moringa hildebrandtii, extinct in the wild, kept from extinction by the local people, very sensitive to spider mites and thrips, seed germinate at hot temperatures, keep it rather dry, have tried cuttings but failed (Madagascar), a semi-dry tropical climate
  • Matelea orthoneura, critically endangered, non cultivated, very sensitive to spider mites and thrips, seed easy to germinate at hot temperatures, a tropical climate (Ecuator)
  • Lavatera  phoenica, endangered, very rarely cultivated, sensitive to spider mites, short-lived, seed somewhat easy to germinate after scarification, possibly propagated by cuttings, polination is apparent difficult which makes it hard to propagate (Canary Islands, on rock crevises, at altitude), perhaps could be grown in frost-free Mediterranean climates or nearby semi-dry oceanic islands
  • Impatiens paucidentata, possibly endangered, rarely cultivated, needs a mild and moist tropical climate, possibly can be propagated by cuttings (central Africa rainforest, Gabon and Uganda)
  • Parajubaea torayii, endangered, but somewhat rarely cultivated, could be grown in Mediterraenan climates in rather dry and sunny climates, can be grown in California, tolerates mild frost but prefers mild winters, one of the few edible coconut for temperate climates (Bolivia altiplano steep rock slopes)
  • Boswellia sacra, vulnerable, ocasionally cultivated but very rarely outdoors, seed expensive and difficult to germinate, needs gravel and limestone mix, light and hot temperatures, can be propagated by cuttings but slow growth, keep it rather dry, needs hot desert climate (Yemen, Somalia)
  • Jubaea chilensis, vulnerable, ocasionally cultivated, slow growing, could be grown in Mediterranean climates in semi-dry mild to warm climate, can be grown in large parts of southwest US, can stand hard frosts but needs mild winters, and dislikes hot moist summers, edible fruit (central Chile, in steep ravines)
I have seedlings of this:
  • Dendroseris micrantha, critically endangered, non cultivated, germination is delicate, needs critical control of moisture, then it has monocarpic growth which makes propagation difficult (Juan Fernandez islands, off coast Chile)
  • Coccothrynax borhidiana, critically endangered, rarely cultivated, difficult to germinate but in limestone and gravel at mild temperatures and irregular watering, keep it dry, very slow growing, could be grown in semi-dry frost-free climates, possibly oceanic (Cuba)
  • Nesocodon mauritianus, endangered, very rarely cultivated, seed needs careful moisture, fine soil and mild temperatures to germinate, as well as growth, temperate moist tropical climate (Mauritius islands, on cliffs)
  • Cedrus atlantica, Atlas Cedarwood, endangered, but widely cultivated, could be introduced to Mediterranean climates (Morroco)
Got seed (several of them critically endangered), but need to germinate:
- Robinsonia gayana (a seedling died, they need careful moisture control), Paulownia kawakamii (from China, adapted to temperate climates, yet critically endangered, sometimes cultivated), Gladiolus griseus, Ixia viridiflora, Araucaria angustifolia, Herrania umbratica, Franklia (extinct in the wild, somewhat cultivated), Metasequoia,  Abies pinsapo (Spain), Agathosma gonadensis (a seedling died), Aloe ramosissima, Baobab suarenzensis, Leucadendron chamalea, Leucadendron argenteum (beautiful endangered shrub from South Africa), Leucadendron discolor (seedling died), Sandalwood (vulnerable, highly prized from its scented wood)

Tried germination often, without success:
- Odontocarya perforata (critically endangered and very rare), Quercus acerifolia (Maple Oak, endangered oak native to US), Betula Tianschanica (endangered birch native to central Asia), Dracaena draco (from Canary Islands, can be grown in Mediterranean climates), Lebanese cedarwood, Athrotaxis latifolia

Seeking to find the following species:
- Wollemia pine (Australia New South Wales, critically endangered became somewhat cultivated in recent years), Kokia cookei (critically endangered from Hawaii, very rare to find), Salvia herbanica, Gomorteca keule, Key tree cactus (critically endangered from Florida, very rarely cultivated), Puyas, Araucarias, Rosewood

You can buy seed from me, on our shop at:

I have information on companies, in where to buy seed for some of these plants

Please contact us!

Also if you are open to collaborate in our project, please contact us! We want people living in climates, committed to plant growing and with land, which can be adequate for some of these species, so that they can be grown outdoors and propagate on their own. 

If you live in places like California, Azores, Madeira, Canary Islands, Spain, Australia and New Zealand, South America, or other tropical climates, please get in touch.