I am trying to figure out if there are any evergreen nitrogen fixing shrubs or trees for Zone 4b. The road I live on borders my property on the uphill side, meaning that in winter, all the snow cleared from the road ends up on the top edge of my property and melts downhill onto the rest of the property in the Spring.
The narrowness of the property combined with positioning of the house and steepness of the slope mean that creating a bioswale here would be rather complicated. I was thinking that if I could create a thick hedgerow of hardy shrubs along the border of the property, this might help reduce the quantity of dirty snow melt running down into my food-growing space.
Is anyone aware of plants that would be good for this function?
I've spent a lot of time looking up trees, including n. fixers, and I don't know of any evergreens that fix nitrogen at zone 4. The only evergreen trees I can think of for zone 4 are conifers. It would be interesting if there was one.
Why work hard when god made so many mongongo nuts? - !Kung
The notion that man must dominate nature emerges directly from the domination of man by man - Murray Bookchin
C'est drôle comme les gens qui se croient instruits éprouvent le besoin de faire chier le monde.-Boris Vian
El hombre es la naturaleza que toma conciencia de sí misma -Elisée Reclus
Location: Portneuf, Quebec
posted 4 years ago
Thanks Michael and Jose. I do know of several nitrogen fixers for my zone, but none that are evergreens. I guess an alternative solution would be simply to plant evergreen shrubs that are not nitrogen fixers but that still produce edibles?
Last year I planted a few junipers. Does anyone have any other suggestion for a dense evergreen hedgerow that produces edibles?