I've grown then here for about 20 years. I've never caged or staked them, but have lost some little ones to critters. Sprouts are heavy feeders, so we give them a little extra. They're just little cabbages, so everything that eats cabbages eats them. We try to harvest as small as possible, and get the sprouts in the pot while they're still screaming. Once they start producing, they make a lot of little sprouts. They're so much better than the frozen ones, or the old ones in the Produce section of the store, they're like a different veggie. When the season's over, we've learned to chop up the stalks. The first year, I just threw them in the compost heap, and I think they took about 2 years to rot up.