How to Grow Amaranth
Wikimedia Commons
Amaranth
Amaranthus species
vegetableAmaranth is a highly nutritious warm-season crop grown for both its edible leaves (similar to spinach) and grain-like seeds. With vibrant foliage in shades of green, red, or purple, it's both productive and ornamentally striking. This ancient grain is drought-tolerant and thrives in hot climates.
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Example Amaranth timeline · Pittsburgh, PA (Zone 6b)
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Plant Amaranth
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Amaranth
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Amaranth dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-11; best in warm zones 6-10
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Seedling
2-3 weeksTiny plants with first true leaves emerging, very delicate appearance
Keep soil consistently moist but not waterlogged. Thin seedlings to proper spacing once 2-3 inches tall. Protect from strong wind.
Vegetative Growth
3-4 weeksRapid stem and leaf expansion; plant reaches 12-24 inches with large colorful foliage
Begin harvesting outer leaves if growing for greens. Reduce watering frequency. Apply balanced fertilizer mid-season for robust growth.
Flowering/Panicle Development
2-3 weeksDistinctive flower heads (panicles) form at top and sides; ranges from dense spikes to feathery plumes in red, gold, or purple
Reduce nitrogen fertilizer to encourage grain development. Continue minimal watering. Do not harvest leaves aggressively at this stage.
Grain Maturation
3-4 weeksPanicles dry out and harden; seeds develop dark color (tan, red, or black depending on variety) and become hard
Cease watering to promote drying. Monitor for seed shattering. Leaves may yellow and drop naturally.
Harvest Ready
Variable; lasts until harvestPanicles fully dried and brown; seeds release easily when rubbed; plant becomes brittle
Harvest entire panicles before excessive shattering. Cut stems at base for complete harvest. Dry further indoors for 1-2 weeks.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use floating row covers on young plants; neem oil spray; diatomaceous earth on foliage
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Increase humidity with regular misting; strong water spray to dislodge; neem oil if severe
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Hand-pick visible larvae; Bt (Bacillus thuringiensis) spray; row covers in early season
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Yellow sticky traps; floating row covers; spinosad if heavy infestation
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Improve air circulation; sulfur dust or neem oil spray; remove infected leaves
Uses
Nutrient-Dense Grain Substitute
CulinaryAmaranth seeds are a complete protein containing all nine essential amino acids, making them an excellent grain alternative for cooking, popping like popcorn, or grinding into flour for baking. [source]
Leafy Green Vegetable
CulinaryYoung tender amaranth leaves are edible when cooked like spinach or eaten raw in salads. They are high in vitamins A, C, and minerals including iron and calcium. [source]
Traditional Medicinal Uses
MedicinalIn traditional medicine systems, amaranth leaves and seeds have been used to address anemia, inflammation, and digestive issues due to their high nutritional density. [source]
Natural Dye Production
HouseholdRed and purple amaranth varieties produce vibrant natural dyes that can be extracted from leaves and stems for textile or craft dyeing projects. [source]
Seed Source for Birds
WildlifeLeaving mature amaranth plants unharvested provides an excellent natural food source for songbirds and other wildlife throughout fall and winter. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For greens: harvest outer leaves once plant reaches 12 inches, pinching from bottom up, allowing center to continue growing (similar to kale). For grain: wait until panicles are completely dry and brown, then cut entire flower head. Lay on clean cloth indoors to finish drying (1-2 weeks), then thresh by rubbing panicles between hands to release seeds. Store dried grain in airtight containers.
Fun Facts
- 🌱 Amaranth was a staple crop of the Aztecs and Incas, valued for both nutrition and ceremonial importance; it's been cultivated for over 8,000 years.
- 🌱 A single amaranth plant can produce 40,000 to 60,000 seeds, making it incredibly prolific and why ancient civilizations relied on it as a drought-resistant food security crop.
- 🌱 Amaranth can grow in poor soil conditions and is remarkably heat and drought-tolerant, making it an ideal crop for climate adaptation and food security in challenging environments.
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