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Can You Grow Amaranth (Chaulai / Rajgira) in Idaho?

US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b

Grows well here

Amaranth thrives in your zone — a productive dual-purpose crop for greens and nutritious grain.

Plant zones

4a–11b

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

50–75 days

When to plant Amaranth (Chaulai / Rajgira)s in Idaho

Start indoors

Feb 14

Transplant

Mar 15

Harvest

May 4 – May 29

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

About Amaranth (Chaulai / Rajgira)

Amaranth (chaulai saag) is a fast-growing leafy vegetable and grain crop used across Indian, African, and Central American cuisines. The leaves are cooked like spinach; the seeds (rajgira) are a nutritious grain used in laddoos and rotis. Extremely productive and heat-tolerant.

Direct sow after last frost — grows rapidly in heat. Harvest outer leaves continuously for greens. For grain, let seed heads mature and turn brown, then thresh over a bucket. Leaf amaranth is ready in 6-8 weeks. Self-seeds prolifically — deadhead if you do not want volunteers.

Full amaranth (chaulai / rajgira) growing guide →

Gardening in Idaho

Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.