Harvest basil first thing in the morning, before the heat of the sun is out, to retain the robust flavor of the essential oils.
Snip off the new growth on each branch of your new basil plant before you replant it in the yard or transplant it to a new container. The basil plant should stand about 1 foot tall at this point. If you start with a smaller plant, don't nip growth off until it has between four and six sets of leaves. Use the basil nips for cooking.
Cut the new growth no longer than every three weeks. Some growers snip the new growth once a week. Taking new growth once a week, however, may not give you enough basil to use for a chosen recipe.
Allow the flowering buds to bloom if you wish to enjoy the full beauty of the plant. However, if you wish to continue to use the herb for cooking, nip off the buds as they appear. The flowering will take the energy of the plant and the leaves will no longer be as pungent.