Holy Basil Growing Guide
Growing Holy Basil is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Herb
Sun Exposure
Full Sun
Frost Tolerance
Frost Tender
Cold Hardiness
Survives to 4°C
Plant Family
Lamiaceae
Growing Season
Warm Season
Plant Lifecycle
Annual
Also grows well as
How to Start It
★ Recommended for beginners
Surface-sow indoors 6 weeks before last frost (the seed needs light and warmth), or direct-sow once the soil is warm. Thin to 30 cm apart.
Holy basil (tulsi) is a distinct plant from sweet basil — more aromatic and clove-like, grown for tea and pollinators. It's a frost-tender annual that germinates and roots readily and self-seeds happily.
When To Start
First Chance to Plant
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Last Chance to Plant
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When should you plant Holy Basil?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Holy Basil Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Holy Basil's Lifecycle
Seedling
Mature Plant
Seed Production
Step 2
Planting & Sprouting
Expect sprouts in 7–14 days
Growing Tips
- 1Tulsi loves heat and full sun and asks for very little.
- 2Pinch out the flower spikes to keep the leaves coming (or leave some for the bees and for seed).
- 3Let one plant set seed and it'll often return next year.
Seedling Phase
Step 3
Growth & Maturity
~65
Days to Maturity
50 cm
Mature Height
40 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
90 days
When to Pick
Pick leaves and flowering tops anytime; pinch flowers to keep it leafy
How to Harvest
- 1Pinch the leafy tops regularly — this keeps it bushy and prolongs the harvest.
- 2Both the leaves and the flower spikes are used for tea; harvest in the morning when the aromatic oils are strongest.
Step 5
Saving Seeds
How to Save Seeds
Leave some of the flower spikes to dry on the plant, then rub the brown seed heads over a bowl to release the tiny black seeds. Holy basil self-seeds freely, so expect volunteers.
Seed Production
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