1/ Biggest loser: wasabi radish. 

I planted the seeds outside in raised garden beds in full sun in late March and they immediately bolted. They produced wispy little bolts that only had one or two seed pods. They continued to grow and bolt and grow and bolt. I’m now on my fourth or fifth generation. I’m not going to try these again, but I’m sure they’ll continue to reseed themselves in my garden. I’d occasionally use a seed pod but they’re not worth the space they take up.