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Brilliant Rainbow Quinoa Guide

This brilliant quinoa variety has multiple colored flower heads that can be harvested for grain. On average, 10-12 plants can yield up to a pound of quinoa grain or you can harvest the young leaves when they’re 6-8 inches tall for cooking or salads. This is a highly drought tolerant variety and is rich with amino acids, iron, magnesium, potassium, fiber, and vitamin E.


Quinoa grows best in warmer weather between 65°F-80°F. They do great in bigger containers and small gardens. Bank on Seeds recommends direct seeding.

If Direct Seeding

  • Direct seed outside 4 weeks after last frost date; or
  • Direct seed into a container 6 inches deep and 12-36 inches wide anytime of the year. It can be placed outside when the temperature is between 65°F-80°F; or

If Transplanting

Begin the growing season early and start the quinoa seeds indoors in trays or pods 4-6 weeks before the last frost date. Germination is best and fastest between 65°F-75°F. It can be transplanted outside 8 weeks later.

Sow seeds 1/4 inch deep and 6-8 inches apart with rows spaced 24-36 inches apart. Germination will take 3-7 days.


Brilliant Rainbow quinoa likes well-draining, fertile soil free of weeds. They also like full sun and little water. Water when the soil is fully dry.

Fertilizer is not required but if you want, use 10-10-10 or 5-10-10 fertilizer at half strength every 6-8 weeks.


Days to maturity take 100 days. The leaves can be picked as needed when the plant is 7-8 inches tall or let it bloom and mature fully to harvest the grain. Cut the stem and hang upside down to dry. Harvest seeds.


Aphids, leafhopper – spray off with water, handpick, insecticidal soap, diatomaceous earth, row covers, neem oil

Leafspot, blight, mildew - do not water from overhead, let dry between watering, keep free of weeds, ensure enough air circulation, cut off affected parts, fungicide, neem oil, rotate crop every 3 years

*Companion plant with beans, peas, corn, dill, mint and sage. You will need at least a 10-15 gallon container to grow sufficient quinoa for grain.*

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