I have several lettuce plants bolting and getting ready to flower. I have brought them into the greenhouse to keep from freezing too much (our greenhouse isn't heated, yet). My question is, do the flowers that come before the seeds need to be pollinated to create viable seeds? Does pollination need to occur for any vegetable that flowers before seeds are formed? Does this make any sense? LOL-Thanks! BTW-I tried Errol's method of saving tomato seeds and planted a few and they are coming up! Thanks, Errol!