what are your thoughts on fall planting of legumes such as alfalfa and clovers? i know that both need a minimum soil temp of 46 degrees so temps should not be a problem right now. having said that, how much time after germination do either need prior to the first frosts? for instance, i know that alfalfa needs 5 trifoliate leaves to be strong enough to make it through winter dormancy but on average how long does that take if conditions are optimal? (conditions are not optimal where i live..... we don't get a ton of moisture).
also, how do weed fair against the competition for the crop if planted in the fall vs. spring? i know that i had a hell of a bad "common bugloss" problem when i planted my alfalfa stand this spring. since broadleaf weeds don't fair as well in the fall as legumes, i'd imagine that they wouldn't be quite as bad if planted in the fall since the alfalfa or clover would have an established root structure before the new weed seeds could even germinate. is this right?