I start spinach and beets pretty early. Early May, I plant enough beets that I can use the young green tops as well. Taste great with spinach. I use small beets for pickling, and start culling pretty early, leaving the rest of the beets to grow bigger. I tried arugila last year, it grew like crazy, and tasted OK steamed. But admitted I'm not a fan of arugila, prefer spinach much more. I like leeks, but they require alot of cultivating and watering to keep them sweet and mild.