Alder is a legume from what I've been told, not a forester or ologist by any means, so it fixes nitrogen in its root system, much like beans and clover.
Locust will do the same thing, and we get some around here, probably planted by pioneers lookin for decent fence posts... probably didn't do any readin about cedar...
Locust will do the same thing, and we get some around here, probably planted by pioneers lookin for decent fence posts... probably didn't do any readin about cedar...