Fast-growing green can be direct sown as soon as soil can be worked. If transplanting, transplant promptly; the fast-growing seedlings resent checked growth, which can cause them to bolt prematurely. Harvest when young for fresh use, when slightly older for braising. The cool-loving green doesn't particularly like mid-summer, but it will do well most of the season: keep on sowing! Arugula is very hardy and will grow through winter with the protection of a cold frame or low tunnel.