Hi there
Thanks for the Additional information.
I think i should devote a post to you for hardy meditteranean area pioneers
Can you tell me how cold is your minimum tempetature in degrees celsius?
How many frosts you get per year on average.
Does it snow?
Then i can help
Hola, yes we get some snow every year, but because we are south-faced it does not last longer than a few days ! We had once minus -9°Celsius. Normally it does not get so cold -3°C is average, don't really know how many days a year,... It varies every year, ...
-9c is chilly!
Europe has very few nitrogen fixing native trees, the Ice ages wiped them out.
But there are species in Asia and the Americas, even Alpine Australia that can be used.
Tagasaste will cope down to -6c, -3c is ok while young.
I was in Kyoto , Japan and they have bush clover. Lespedeza bicolor var japonica. Its a very good shrub legume and very beautiful
I also have used Albizia julibrissin , the Persian silk tree as a support legume.
Black locust (Robinia pseudoacacia) is good but weedy. I probably dont reccomend it.
Acacia alpina and Acacia phlebophylla from the Australian alps are cold hardy to snowfall. If you can find seed.
These are hardy plants that can grow in the mountains on rocky slopes
thanks for the information, we have black locust growing! I will look up the other suggestions!