Burgundy Amaranth

Start seeds indoors 4 to 6 weeks before your average last frost date using biodegradable pots—amaranth roots are sensitive to disturbance, so biodegradable containers allow you to plant the entire pot directly into the ground without disturbing roots. Sow at a soil temperature of 65–75°F, barely covering seeds with soil. Transplant outdoors after your last frost date when soil has warmed to at least 65°F.

Transplant seedlings outside 1 to 2 weeks after your average last frost date, or whenever soil temperature reaches 65°F or higher. Space plants 18 inches apart to allow for mature width of 18–24 inches. Plant the entire biodegradable pot directly into the ground to minimize root disturbance.

Direct sow outside 1 to 2 weeks after your average last frost date when soil temperature reaches 65–75°F. Sow seeds barely covered and thin seedlings to one plant every 18 inches when they reach 3 inches tall.

Harvest grain heads when they dry on the plant, they'll shift from their burgundy color to a deeper, almost brown-black hue and the seeds will feel hard when squeezed between your fingers rather than soft or milky. Cut the entire seed head and allow it to dry further in a warm, well-ventilated location before threshing the grain. For microgreens or tender young leaves, harvest from the top of the plant when leaves are still small and tender, typically within the first 4 to 6 weeks of growth.