Did you know that basil is the most important herb? In Greek, basilikos means "royal," and basil was once only used in ceremonies for kings and queens.
1/4-inch deep is ideal. Thin seedlings to one every 10 to 12 inches until they have 2-3 genuine leaves. Basil grows 12-24 inches tall.
Plant wider for bigger variety (about 16 to 24 inches).Tomatoes are basil's garden and dish neighbors.
If you planted seeds outside, thin basil seedlings to two inches apart when they have their second set of leaves.
Once a week, water basil an inch to promote deep roots. Soaker hoses and drip irrigation water deeply and regularly. Rain cancels irrigation.