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Can You Grow Holy Basil (Tulsi) in Arizona?

US · USDA Zone 9a · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a

Grow indoors

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

Plant zones

10a–11b

Arizona last frost

late January

Arizona first frost

late December

Days to harvest

45–60 days

When to plant Holy Basil (Tulsi)s in Arizona

Start indoors

Jan 1

Transplant

Jan 20

Harvest

Mar 6 – Mar 21

Dates are approximate, based on Arizona'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 Arizona

Arizona spans dramatic climate zones from cool mountain forests to hot desert. Low-elevation cities like Phoenix grow year-round; high-elevation areas are Zone 5-6.