Red Garnet Amaranth

Amaranth prefers well-draining soil with a pH of 6.0-7.0 and full sun. It needs at least 6 hours of direct sunlight per day for optimal growth. Amaranth is a warm-season crop and does best in temperatures between 65-85°F.

After danger of frost has passed surface sow seeds and cover with a very fine layer of soil.  Space seeds 2-3" apart in rows 24-36" apart.  Thin to one plant every 6" after germination has occurred. 

Not recommended.

Insect Pests

Although uncommon, amaranth can be affected by the pigweed weevil, a small insect that burrows into the stem of the plant causing it to wilt and fall over. Regularly monitor plants for signs of pests. Pull and destroy affected plants if needed.

Diseases & Other Problems

Although generally easy to grow, amaranth can be affected by common diseases like damping off. Wait until the danger of frost has passed and avoid planting when cool, wet weather is forecasted to prevent disease.

Young leaves can be harvested around one month from planting. Cut individual leaves starting at the bottom of the plant and working up. Leave the growing tip intact to allow for continued growth. For seed, wait until the plants are fully mature and have begun to dry down. Cut the heads and hang upside down over a tarp or set upright in a tote or barrel to finish drying. Rub against fine mesh to release the seeds. Winnow gently to separate the seed from the chaff.

CONSIDERATIONS:

Amaranth is a predominantly wind-pollinated crop, although the heads are frequented by honeybees and may occasionally be pollinated by bees or other insects. When growing more than one variety, plants must be isolated geographically or grown in fine mesh cages.

HARVESTING SEED:

To harvest seeds, allow the plants to reach full maturity then cut the heads from the plant and store in a well-ventilated place until the heads have completely dried. Rub the seed heads against mesh or between hands to release the small seeds. Be sure to wear a dust mask or respirator as this is a dusty job. Store seeds in an airtight container until ready to use.

SEED LONGETIVITY:

Amaranth seeds can remain viable for up to five years if stored in a cool, dry place.