Holy Basil
Ocimum tenuiflorum
herbSacred basil of India with a distinctly different character from sweet Italian basil — peppery, clove-forward, and slightly minty with an exotic aromatic depth. Revered in Hindu tradition as Tulsi, the queen of herbs. Used medicinally in Ayurveda for millennia and increasingly popular in Western herbal medicine. Also excellent as a culinary basil in Indian and Southeast Asian cooking.
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Sun
full sun
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Water
Every 3 days
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Harvest
~75 days
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Difficulty
easy
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Lifecycle
annual
One season, then done
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Spacing
10-12 in
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Planting Depth
1/4 in
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Soil pH
6.0-7.5
Growing Details
Soil Type
Rich, well-draining
Hardiness Zones
Zones 4 – 11
Grown as an annual — this range is its winter hardiness, but you can grow it for a single season in any zone.
When to Fertilize
At planting; light balanced feed every 4 weeks
Fertilizer
Balanced fertilizer at low to moderate rate; lean soil increases aromatic intensity
🌱 Growing Guide
Start indoors 4 to 6 weeks before last frost or direct sow after soil warms. Full sun and warm conditions produce the most aromatic plants. Holy basil is somewhat more heat-tolerant and slower to bolt than sweet basil. Allow some plants to flower for ornamental value and seed-saving; the flowers are highly attractive to bees and butterflies. Flavor profile changes somewhat after flowering — less peppery, more floral.
Planting Calendar
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Start seeds indoors
Mar 4
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Transplant outdoors
Apr 29
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Projected first harvest
Jul 13
JJan
FFeb
MMar
AApr
MMay
JJun
JJul
AAug
SSep
OOct
NNov
DDec
✅ Plant alongside
Good neighbors that attract beneficial insects or deter pests
- Tomato — Repels aphids and whiteflies; a classic garden pairing
- Pepper — Compatible warm-season companion with similar requirements
- Eggplant — Said to repel beetles and mites that attack eggplant
- Most vegetables — General aromatic pest deterrence; exceptional pollinator attractor when in flower
🛡️ Pest & disease prevention
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
Water blast; insecticidal soap; introduce lacewings
Handpick in morning; neem oil spray
Rotate location annually; remove wilted plants; do not compost diseased material
Ensure good airflow; avoid wetting foliage; copper spray at first sign
🌾 Harvest & storage
Harvest young stem tips frequently to encourage bushy growth. Holy basil is used fresh in Thai cooking, brewed as Tulsi tea, and used in herbal tinctures. For herbal tea: steep 1 tablespoon of fresh leaves or 1 teaspoon of dried in hot water for 5 minutes. Dry at low temperature to preserve volatile oils. Holy basil is adaptogenic — traditionally consumed daily for stress and immune support.
🥗 Nutrition & benefits
Contains eugenol, rosmarinic acid, and ursolic acid — compounds studied for anti-inflammatory, adaptogenic, and antimicrobial properties. Good source of vitamin K, vitamin A, and manganese. Tulsi is classified as an adaptogen in Ayurvedic medicine, traditionally used to reduce stress hormone cortisol.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.