i have planted a few beds with Mustard and Vetch and both are a few feet tall. Don't really want to chop the Mustard just now as it is flowering and attracting a lot of bees. A quick Google says to chop it before flowering but I won't be planting anything else on the beds until spring so my plan is to leave it until they go to seed, has anyone done this? If so did it seed itself the follinging year and become a pain to keep on top of, thanks.