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Nitrogen fixing trees for zone7

Adraina Robinson

Posts: 2

posted 11 years ago

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looking for nitrogen fixing trees for zone 7....any recommendations??

S Bengi

pollinator

Posts: 3830

Location: Massachusetts, Zone:6/7 AHS:4 GDD:3000 Rainfall:48in even Soil:SandyLoam pH6 Flat

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posted 11 years ago

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These are all in the Elaeagnaceae family :
Silverberry
Goumi
Autum Olive
Seaberry
buffaloberry

They also have edible berries.

Iterations are fine, we don't have to be perfect
My 2nd Location:Florida HardinessZone:10 AHS:10 GDD:8500 Rainfall:2in/mth winter, 8in/mth summer, Soil:Sand pH8 Flat

Will Scoggins

Posts: 62

Location: Northeast Arkansas

posted 11 years ago

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Mimosa (Japanese Silk) Trees grow extremely fast where I am(Zone 7-8 ). And once they are a certain size they can handle some pretty extreme pruning. I have used the ones that popped up along my fence row (I don't weed eat) to make trellises, plant stakes, blanket ladders, and the like. As a bonus it has pretty flowers.

I have read there are medicinal qualities, but cannot personally attest to them.

Cassie Langstraat

steward

Posts: 4047

Location: Montana

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posted 11 years ago

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I found this site that might be helpful. It has mostly smaller trees and shrubs for your zone but it still would probably be helpful.

Nitrogen Fixing Trees and Shrubs

Operations Manager for Water Stories - a learning, training, and action platform dedicated entirely to Water Restoration

Michael Qulek

Posts: 498

posted 11 years ago

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Black Locust, Honey Locust, Kentucky Coffee tree, Alder. Black Locust is my first choice because it is such excellent firewood. Honey Locust however produces edible pods.

Cassie Langstraat

steward

Posts: 4047

Location: Montana

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posted 11 years ago

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Black locust for the win!

Operations Manager for Water Stories - a learning, training, and action platform dedicated entirely to Water Restoration

John Suavecito

gardener

Posts: 4542

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posted 11 years ago

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Ceanothus (California Lilac) is native. Alder might be too. Redbud has edible pods and early leaves, and shockingly beautiful purple leaves all over in the Spring.
John S
PDX OR

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