Basil is easy to grow in the garden and if you harvest it right, it will continue to provide fresh leaves for seasoning (and pesto!) for months at a time. Basil is an easy one to add to your vegetable garden!
Basil Basics: Prune basil regularly for best flavor. About every four weeks, prune basil back to just above the bottom two sets of leaves. If allowed to flower, it will lose flavor. From Fine Gardening.