I can't seem to find a good online source about growing concord grapes.
I live in southern NH near the coast.
What I'd like to know is:
1) How much do I prune and when? 2) How should I amend the soil to maximize fruit production? (In my second year, I only got two small bunches of grapes) 3) How big of a trellis should I build? (right now I have it growing on two 6 ft fence posts with wire fence between them)Any help here or pointing me in the right direction would be greatly appreciated!
Thanks in advance.
-Kevin