Garden Scheme

Plant library  ·  Herbs

Sweet Basil

Ocimum basilicum

Sweet basil is a warm-season annual herb grown for repeated leaf harvest from summer into early fall. Reaching about 2 feet tall and 18 inches wide, it makes a leafy, medium-height presence in vegetable beds, herb plots, and roomy containers. Place it where frequent picking is easy: regular tip pinching keeps the plant compact, branching, and productive.

  • Pollinator friendly
  • Deer resistant
Sunlight Full Sun
Water Regular
USDA zones 2–11
Spacing 1 ft
Mature size 2 ft tall, 1.5 ft wide
Harvest Summer - early fall

Placement and use

Give Sweet Basil a sunny position near the front or middle of a food garden, rather than behind taller crops that could limit its light. Set plants close to a path, patio, or kitchen door so stems can be picked without stepping into the bed. It can share a planting area with tomatoes, peppers, lettuce, asparagus, or carrots. Keep it in a separate section from sage and rosemary when organizing a mixed herb bed.

Spacing and mature footprint

Plant basil 12 inches apart, center to center, for a continuous harvestable row or block. Each plant can broaden to roughly 18 inches, so allow the foliage to meet lightly rather than packing plants tightly beneath larger neighbors. In a bed, leave a reachable edge or stepping access beside the planting; this makes it easier to pinch tips, pick leaves, and remove flower buds throughout the season.

Three plants set 1 ft apart, center to center; shaded circles show the 1.5 ft mature spread.

Sun, water, and soil

Use a full-sun site with at least 6 hours of direct summer light and soil that stays evenly moist but drains freely. Regular watering is most manageable in a bed with a nearby hose path or in a container that can be checked often. Avoid crowding the planting: open space around foliage improves air movement when warm, humid weather arrives.[1][2]

Seasonal notes

Plan basil as a single-season occupant, planting after cold conditions have passed and using the space for another crop when it finishes. Leaf harvest begins about 60 days after planting and continues from summer into early fall. Pinch growing tips and emerging flower buds if the goal is a longer leafy harvest; leave selected plants to flower when their pollinator-friendly bloom is wanted instead.

Growing facts

Botanical name
Ocimum basilicum
Type
Herb
Category
Herbs
Lifecycle
annual
USDA hardiness zones
2–11
Sunlight
Full Sun
Water
Regular
Plant spacing
1 ft
Mature size
2 ft tall, 1.5 ft wide
Days to maturity
60
Harvest season
Summer - early fall
Pollinator friendly
Yes
Deer resistant
Yes
Native to North America
No

References

  1. Growing Basil in a Home Garden — University of Maryland Extension
  2. Ocimum basilicum — North Carolina Extension Gardener Plant Toolbox

Editorial content updated 2026-07-20.