permaculture

["Donna Jones" <djones@kodiak.alaska.edu>]

Can elderberries be grafted? 
The wild elderberries here are poisonous, except for the flesh of the
berries. What would happen if I grafted nonpoisonous elderberries onto the
local rootstock? I am thinking of using the Northwestern native blue
elderberry for the scion. 
I know that the Bulluck brothers down in the San Juan islands grafted
named apples onto the native crabapple stock there, but those crabs were
themselves edible. 
Thanks for you ideas.