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Can You Grow Holy Basil (Tulsi) in Hawaii?

US · USDA Zone 12b · zones 9b, 10a, 10b, 11a, 11b, 12a, 12b

Grow indoors

Grow in a pot indoors year-round — it loves a south-facing window and warm temperatures.

Plant zones

10a–11b

Hawaii last frost

no frost

Hawaii first frost

no frost

Days to harvest

45–60 days

When to plant Holy Basil (Tulsi)s in Hawaii

Start indoors

Jan 1

Transplant

Jan 1

Harvest

Feb 15 – Mar 2

Dates are approximate, based on Hawaii's average frost dates. Your exact yard may vary by microclimate.

About Holy Basil (Tulsi)

Holy basil (tulsi) is one of the most sacred plants in Hinduism and a cornerstone of Ayurvedic medicine. The clove-pepper flavoured leaves are used in Indian cooking, teas, and as a medicinal herb. Grows happily in a pot on a sunny windowsill in any climate.

Start indoors 4-6 weeks before last frost. Grow in a sunny window year-round in cold climates. Harvest before flowering to maintain flavour. Pinch flower buds regularly. Three varieties worth growing: Rama (mild), Krishna (purple, spicier), Vana (wild-type, very aromatic).

Full holy basil (tulsi) growing guide →

Gardening in Hawaii

Hawaii is tropical with year-round warmth. Zone varies dramatically by elevation — coastal areas are Zone 11-12 while Mauna Kea slopes reach Zone 9. Year-round growing throughout.