How to Grow Green Amaranth
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Green Amaranth
Amaranthus viridis
vegetableGreen amaranth is a leafy green vegetable with tender, nutritious leaves commonly used in Asian and African cuisines. The plant grows as an annual with soft stems and edible leaves that can be harvested continuously throughout the growing season. It's drought-tolerant, fast-growing, and highly nutritious, making it an excellent choice for home gardeners in warm climates.
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Example Green Amaranth timeline · Pittsburgh, PA (Zone 6b)
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Plant Green 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 Green Amaranth
Around May 17≈ 30 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Green Amaranth dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-11; can be grown as summer annual in cooler zones
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Seedling
1-2 weeksTiny seedlings emerge with cotyledons visible within 5-10 days. True leaves begin to unfold shortly after.
Keep soil warm (70-85°F) and consistently moist. Thin seedlings to proper spacing once true leaves appear. Protect from strong winds.
Vegetative Growth
2-4 weeksPlant develops multiple true leaves and a sturdy stem. Foliage is bright green and tender; plants grow quickly in warm conditions.
Maintain consistent moisture and warmth. Begin light harvesting of outer leaves once plant reaches 6 inches tall. Apply balanced fertilizer every 2-3 weeks for continuous growth.
Leaf Development
3-8 weeksPlant reaches mature height (12-24 inches) with abundant tender leaves suitable for regular harvesting. Foliage becomes lush and productive.
Harvest outer leaves regularly to encourage branching and continuous production. Water consistently. Monitor for pests and diseases.
Flowering
1-2 weeksIf left unharvested, plant will eventually produce small inconspicuous flowers in terminal spikes (may indicate plant is reaching end of productivity).
For leaf production, harvest before flowering begins. Allow flowering only if seed collection is desired.
Seed Production
2-3 weeksSmall seeds develop in seed heads if flowering is allowed to complete. Seeds are viable for future planting.
Allow seed heads to fully mature and dry on plant. Collect and dry seeds before frost in cooler zones.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with neem oil or insecticidal soap; increase humidity; remove heavily infested leaves
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Use floating row covers on young plants; apply neem oil; remove affected leaves
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Spray with strong water stream; apply insecticidal soap or neem oil; encourage beneficial insects
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Yellow sticky traps; neem oil spray; improve air circulation
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Avoid overhead watering; remove infected leaves; improve air circulation; apply fungicide if severe
Uses
Nutritious Leafy Green
CulinaryGreen amaranth leaves are rich in vitamins A, C, and K, as well as minerals like calcium, iron, and magnesium. The tender leaves can be eaten raw in salads or cooked like spinach in stir-fries, curries, soups, and steamed dishes. [source]
Traditional Asian & African Cuisine
CulinaryWidely used in Indian, Chinese, African, and Caribbean cuisines as a staple leafy vegetable. Known as 'Saag' in India, 'Ong Choy' in China, and 'Ewedu' in Nigeria. [source]
Traditional Health Benefits
MedicinalUsed in traditional medicine systems for digestive support and anti-inflammatory properties. High in polyphenols and antioxidants that may support overall wellness. [source]
Seed Production & Storage
HouseholdSelf-seeding plants can provide seeds for next season's crops. Amaranth seeds are also edible and nutritious, though production is higher with dedicated grain amaranth varieties. [source]
Bird & Pollinator Food
WildlifeSeed heads attract birds and various beneficial insects. Flowers provide nectar for pollinators, supporting garden ecosystem health. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin harvesting outer leaves once plant reaches 6-8 inches tall, usually 3-4 weeks after planting. Pinch or cut leaves from the outside inward, leaving central leaves to continue growth. Harvest in early morning for best flavor and nutrition. Young, tender leaves (1-3 inches) are most desirable. Regular harvesting encourages bushier growth and prolongs productivity. Plants can produce for 8-12 weeks with continuous harvest before declining. Cut entire plant at soil level for final harvest, or allow to self-seed for next season.
Fun Facts
- 🌱 Amaranth viridis is one of the most nutritious leafy greens available, with complete protein containing all nine essential amino acids when seeds are also consumed.
- 🌱 The plant is incredibly drought-tolerant and thrives in poor soil conditions where many vegetables fail, making it ideal for low-input gardening and food security in developing regions.
- 🌱 Green amaranth has been cultivated for over 6,000 years, originating in Central and South America before spreading worldwide, and is now a staple crop on multiple continents.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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