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Can You Grow Holy Basil (Tulsi) in Alberta?

Canada · Canadian Zone 4 · zones 2, 3, 4, 5

Won't grow here

Tulsi is frost-tender but thrives as a container herb on any sunny windowsill year-round.

Plant zones

10a–11b

Alberta last frost

early May

Alberta first frost

early October

Days to harvest

45–60 days

When to plant Holy Basil (Tulsi)s in Alberta

Start indoors

Apr 3

Transplant

May 1

Harvest

Jun 15 – Jun 30

Dates are approximate, based on Alberta'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 Alberta

Alberta has a dry continental climate with cold winters and warm summers. Calgary and Edmonton are Zone 4-5. Intense sunshine compensates for the short season. Chinook winds bring warm spells in winter.