Is it temperature sensitive for germination? I had a patch, at the house that has been sold, that came up every year and reseeded itself every year. Now I am trying to start some from seed, and after three plantings, nothing. Temps here have been in the 80's and very dry, but I have been watering. Does it want cool springtime temps to germinate? I'm afraid there may be no pickles this year, or else I'll have to buy Dill!