I bought some of these starters from a big box store and it says plant them when chance of frost is gone. Since I'm probably still 1 month out how should I best keep them? Should I water them in the plastic bags they are in or leave them dry? Inside or out in cold shed?
I think the problem is that the instructions were written by a "writer", not a gardener. Plant them as soon as practical, all plants shown grow where temperatures are below freezing. I am sure I have planted blueberries and raspberries and countless trees, fruit and other wise, before the last frost. I can't remember when I planted grapes and strawberries. The greatest danger is direct sun on the bag when plants are still in them. I always try to plant woody plants when dormant which normally means freezing is still possible. Keep them in a cool place until you are ready to plant; that will be better than in the warm store.