Amaranthus - Key Growing Information
DAYS TO GERMINATION: 7-10 days at 70-75°F (21-24°C).
SOWING: Support may be necessary.
Transplant: Sow 4-6 weeks before the last frost. Barely cover seed. Bottom water or mist to avoid covering seeds with displaced soil. Harden off by growing at 62-65°F (17-18°C) and transplant outside after last frost.
Direct seed: After last frost, sow thinly, barely covering the seed. When seedlings have first true leaves, thin to 12-15" apart.
LIGHT PREFERENCE: Sun.
SOIL REQUIREMENTS: Well-drained soil.
PLANT SPACING: 12-15". For upright, plume type, thinner and more manageable stems can be achieved using a tighter spacing of 3-6".
HARDINESS ZONES: Annual.
HARVEST: Fresh: Harvest when at least 3/4 of the flowers on the inflorescence are open.
Dried: Harvest when seed has begun to set and flowers feel firm to the touch. To dry, hang nontrailing varieties upside down. Stand trailing varieties upright in a bucket or other tall container to maintain the draped appearance.
USES: Fresh or dried cut flower, back of bed, accent in borders, and containers.
SCIENTIFIC NAME: Amaranthus spp.