I hear you LP Im also from New england and Ive had all the rain I can take for a while. It seems like we will get all the rain now and none all summer. As far as your plants go I think you should be all set as long as, like said previously you have ample drainage and they are fairly established plants (not seedling). Its been a little cold for seedlings so with that its a 50/50 shot, just get to them soon and check them out. You still have plenty of time to put more out if need be.