ShLUbY
Well-Known Member
Not quite as cold as MI, but it overwinters nicely here (zone 7A).
What I do is, make the last harvest before the first frost and then let the first killing freeze knock down whatever growth to benefit the plant. When it's killed to ground level, I'll apply alfalfa, or manure, or, whatever's handy and then mulch on top of that. Sometimes pine bark mulch, sometimes leaves. Again, whatever's handy, comfrey is not very particular.
It does love plenty of water while growing, if you have a low or damp spot in the yard. It's nearly impossible to over water during the warmer months. Just be very sure of the location, because it's there to stay.
HTH
Wet
nice thanks for the tips. is it as invasive as say a mint?? should i put some sort of barrier in the ground to prevent it from taking over too large of an area?