How to Grow Lemon Basil

Lemon Basil

Ocimum × citriodorum

herb

Lemon basil is a fragrant hybrid basil variety that combines the classic basil flavor with bright citrus notes. This tender annual herb grows 12-18 inches tall with small, delicate leaves and produces small white or pale purple flowers. It's prized for culinary use, adding a fresh lemon-basil flavor to dishes, beverages, and desserts.

Growing Conditions

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Sun: Full sun, 6-8 hours daily; tolerates partial shade in hot climates

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Water: Keep soil consistently moist but not waterlogged. Water when top inch of soil is dry. More frequent watering needed in hot weather and containers. Reduce watering in cooler months

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Spacing: 12 inches

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Days to maturity: 60-80 days

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Planting depth: 0.25 inches for seeds; transplants at soil level

Soil

Type: Well-draining, fertile loamy soil

pH: 6.0-7.0

Amendments:

Compost or aged manure Perlite for drainage Balanced slow-release fertilizer

Growing Zones

Find your zone →

Best grown as an annual in zones 3-11; perennial in zones 10-11. Dies at first frost in cooler climates

10a 10b 11a 11b

Growth Stages

Seedling

2-3 weeks

Tiny seedlings emerge with two seed leaves (cotyledons), developing true leaves within 1-2 weeks

Keep soil moist but not soggy. Provide 12-14 hours of light daily. Thin seedlings to proper spacing once they have 2-3 true leaves

Vegetative Growth

3-4 weeks

Plant develops bushy foliage with multiple stems and increasingly fragrant lemon-scented leaves; reaches 4-6 inches

Pinch off top growth regularly to encourage bushiness. Remove any flower buds to extend leaf production. Water consistently and fertilize every 2-3 weeks with balanced fertilizer

Full Growth

4-6 weeks

Plant reaches mature height of 12-18 inches with dense foliage and well-developed lemon fragrance

Continue regular pinching to maintain shape and delay flowering. Harvest leaves regularly to stimulate new growth. Monitor for pests and disease

Flowering

6-8 weeks (if flowering allowed)

Small white, cream, or pale lavender flowers appear at branch tips in terminal spikes

Pinch off flowers as they appear to keep plant vegetative and maximize leaf production. If allowing flowers for ornament or seed, reduce harvest frequency

Harvest and Maintenance

Until frost or end of season

Plant continues producing harvestable leaves; quality may decline as plant ages or temperatures cool

Harvest leaves from top down, taking no more than 1/3 of plant at once. Discard plant in fall after first frost or when productivity declines; grow as annual

Companion Planting

Plan your garden →

Plant with:

Tomato Pepper Eggplant Parsley Oregano Thyme Marigold Nasturtium

Avoid planting near:

Rue Cabbage family plants (if space is extremely limited)

Common Pests

Hand-pick early morning; use row covers; spray neem oil or insecticidal soap if severe
Spray with strong water stream; use insecticidal soap or neem oil; introduce ladybugs
Increase humidity; spray with water; use neem oil or miticide if severe
Remove affected leaves; use sticky blue traps; spray neem oil or spinosad
Use yellow sticky traps; spray insecticidal soap or neem oil; encourage beneficial insects

Uses

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Flavoring for Beverages & Desserts

Culinary

Lemon basil adds a sophisticated lemon-herb note to iced teas, lemonades, cocktails, and desserts like sorbets, cakes, and cookies. The bright citrus flavor pairs exceptionally well with sweet and savory applications. [source]

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Fresh Cooking & Garnish

Culinary

Use fresh leaves in fish dishes, pasta, salads, fruit salads, and as a garnish for soups. The delicate leaves are best added at the end of cooking to preserve their bright citrus aroma. [source]

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Herbal Tea & Digestive Aid

Medicinal

Steep fresh or dried lemon basil leaves to make a soothing digestive tea that may aid digestion and reduce bloating. The aromatic compounds in basil have traditionally been used to support digestive health. [source]

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Natural Air Freshener & Aromatics

Household

Dry lemon basil for use in sachets, potpourri, or herbal arrangements to naturally freshen indoor spaces. The dried leaves retain their pleasant lemon fragrance for several months. [source]

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Pollinator Attraction

Wildlife

When allowed to flower, lemon basil attracts bees, butterflies, and other beneficial pollinators to the garden. The delicate flowers provide nectar for beneficial insects. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Harvest leaves continuously once plant reaches 6 inches tall, pinching from the top to encourage bushiness. Best flavor is in morning after dew dries. Harvest individual leaves or short sprigs (top 2-3 inches of stems). Regular harvesting extends the growing season and prevents flowering. For maximum freshness, use immediately or freeze in ice cube trays with oil

Fun Facts

🌱 Lemon basil is a hybrid created by crossing African blue basil with lemon-scented basil; it's not found wild in nature
🌱 The essential oils in basil leaves, particularly linalool and eugenol, are released when leaves are touched, which is why this herb smells strongest when brushed against
🌱 Lemon basil has more delicate leaves than sweet basil and a more pronounced citrus aroma, making it prized by chefs for its unique flavor profile

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