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Geoff Lawton’s list of pioneer plant species used on the greening the desert site

 
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Not my original information, but can't remember exactly where I found it.

Geoff Lawton’s list of pioneer plant species used on the site
If you came to a site like this and just started planting typical fruit and vegetables, you would fail miserably. Conditions are far too harsh. Without pioneer species (like these listed below) first setting the stage, the show just would not go on….
• Leacaena: a fast growing, medium size and life span tree; a very heavy nitrogen fixer and very high quality animal forage that coppices and pollards very well.
• Sesbania sesban: an extremely fast growing small tree with a short life span; a very heavy nitrogen fixer, grows very easily from seed.
• Albizia lebbek: a slower growing, long-term, large canopy, long-lived shade tree; a good nitrogen fixer and very drought tolerant.
• Tipuana tipu: a slower growing, long-term, large canopy, long-lived shade tree, with excellent filtered shade form for food forest canopy inter-planting; a good nitrogen fixer and moderately drought tolerant. Will coppice or pollard.
• Prosopis: a medium to large tree, long-lived, a good nitrogen fixer, a good forage including the pods which can be human food; coppices and pollards well but is very spiny and is usually pruned to a high standard to reduce human contact with the spines, unless being used as an animal barrier hedge or for firewood production as it is quite good stick fuel for rocket stoves. Extremely drought tolerant.
• Aciacia Farnesiana: a small, medium-term nitrogen fixing tree with food, medicinal, dye and perfume uses; also a thorny barrier plant. Very drought resistant.
• Poinciana: a large and beautiful flowering and exotic leaf form, very wide canopy long-lived nitrogen fixer that will coppice and pollard. Quite drought tolerant.
• Acacia Saligna: a small medium-term nitrogen fixer, fast growing, good fire wood, very drought tolerant.
• Bauhinia: a very beautiful flowering plant with an unusual leaf, a slower growing, large canopy, long-lived shade tree; a good nitrogen fixer and moderately drought tolerant. Will coppice or pollard.
Honey Locust: a long-term, medium-size nitrogen fixer that is very thorny; will coppice and pollard and is very good firewood and a very good bee forage.
• Jerusalem Torn: a medium to large long-lived tree, a good nitrogen fixer, small thorns, very hardy with light shade canopy.
• Casuarina Torulosa: a fast-growing, long-lived, tall, slender form nitrogen fixer and phosphate fixer through fungi relationship; a very good wind break tree and excellent firewood.
• Cassia: a small, local bush cassia that is a medium-term nitrogen fixer that can be cut for mulch.
• Tecom Stans: a medium-size and -term fast growing, very hardy tree that can be heavily coppiced or pollarded for mulch. Not a legume.
• Pig Face: a succulent ground cover that insulates the ground from the intense heat, reducing evaporation and trapping organic matter and wind blown nutrient, creating a much improved topsoil environment. Extremely drought tolerant.
 
Posts: 62
Location: NW Arizona - high desert Joshua Tree forest
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Is there a list for the high desert?

Temps from 0 F to 110, extremely high continuous wind in spring, pH 8.7.
 
pollinator
Posts: 1981
Location: La Palma (Canary island) Zone 11
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Very interesting list for me!

- Mind tipuana tipu near walls, as its roots are not friendly...
(I gave it up and chose cajanus cajan instead)

- What is pig face please? Anyone knows?

- I would love to find prosopis seeds (honey mesquite)!
Any clue to buy some?
The ones I found are sold only within the US
 
Posts: 104
Location: Makkah, Saudi Arabia
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Pigface is a common name for Portulaca. I would like to add that in my experience, albizia lebeck has grown faster than sesbania sesban, but that may be species responding to our particular soil conditions.
 
Xisca Nicolas
pollinator
Posts: 1981
Location: La Palma (Canary island) Zone 11
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Ok thanks
I had one last year, hope it has self-seeded....

And I have just sown montia parvifolia, which is also a sort of portulaca.
 
Posts: 69
Location: Northern Tablelands, NSW, Australia
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In Australia, pigface often refers to members of the genus Carpobrotus, common ones here being Carpobrotus glaucescens and C. rossii. These can often be found growing in coastal dunes. They have a fruit with a sweet and salty taste and the leaves of many of them have a lovely acid bite, good in salads. They are well-suited to arid environments.
 
Posts: 25
Location: NE Arizona
forest garden trees greening the desert
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Hi Christine,

Christine Baker wrote:Is there a list for the high desert?  

Temps from 0 F to 110, extremely high continuous wind in spring, pH 8.7.



I am in NE Arizona, same kind of wind and pH (8.6). Have you seen this?:

Filename: High-Desert-Plant-Palette.pdf
File size: 120 Kbytes
 
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