Question about asparagus:
When do the stalks no longer feed the roots in the fall? Is it when all the tiny, fine fronds are gone, or dead, from the tips of the stalk, or is it as long as the stalks themselves are green? I don't know if any significant action is going on between the stalk and roots when they are mostly dead, but not quite.
I usually end up cutting off the stalks in the early spring after snow melt since they stay green so long in the fall. Does it make a difference in a cold climate where the bugs are likely dormant or waiting for warm weather to hatch?