How to Grow African Spinach Giant Green
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African Spinach Giant Green
Amaranthus tricolor
vegetableAfrican Spinach Giant Green is a heat-loving leafy green vegetable with large, vibrant green leaves and attractive foliage. It's more tolerant of heat and humidity than common spinach, making it ideal for warm climates and summer growing. The plant produces tender, nutritious greens that can be harvested continuously throughout the growing season.
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Example African Spinach Giant Green timeline · Pittsburgh, PA (Zone 6b)
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Plant African Spinach Giant Green
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 African Spinach Giant Green
Around May 27≈ 40 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact African Spinach Giant Green dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11; grows as warm-season annual in zones 3-9
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Seedling
2-3 weeksSmall green cotyledons emerge, followed by true leaves with characteristic red or green coloring
Keep soil moist; provide gentle light; thin seedlings to proper spacing once first true leaves appear
Vegetative Growth
3-4 weeksPlant develops multiple large, glossy green leaves; stems may show red or burgundy coloring depending on variety
Maintain consistent moisture and warmth; feed with balanced or nitrogen-rich fertilizer every 3-4 weeks; pinch growing tips to encourage bushiness
Leaf Expansion
3-4 weeksLarge, tender leaves reach full size; plant becomes bushy and productive
Begin harvesting outer leaves regularly to encourage continued growth; maintain regular watering and feeding schedule
Harvest & Production
6-10 weeksPlant produces abundant harvestable leaves continuously; may eventually bolt and flower in late season
Harvest frequently to prevent flowering and extend productivity; remove any flower buds as they form unless saving seeds
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick caterpillars; use Bt (Bacillus thuringiensis) spray; encourage beneficial insects like parasitic wasps
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Increase humidity with regular misting; spray with neem oil or insecticidal soap; ensure good air circulation
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Use row covers on young plants; dust with diatomaceous earth; plant trap crops like radishes nearby
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Spray with strong water stream; apply insecticidal soap or neem oil; introduce ladybugs and lacewings
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Remove affected leaves; use sticky traps; apply spinosad if infestation is severe
Uses
Cooked Greens & Stir-Fries
CulinaryAfrican Spinach Giant Green leaves are excellent for cooking, sautéing, and adding to stir-fries, soups, and curries. The tender leaves cook down quickly and have a mild, pleasant flavor similar to spinach but with better heat tolerance. [source]
Raw Salads
CulinaryYoung, tender leaves can be used raw in salads and smoothies. The mild flavor and tender texture make them suitable for fresh applications, though they are more commonly cooked. [source]
Traditional Nutritional Support
MedicinalAfrican Spinach has been used in traditional African and Asian medicine as a nutritious food for supporting overall health. It is rich in vitamins, minerals, and phytonutrients including calcium, iron, and antioxidants. [source]
Natural Dye Source
HouseholdThe red or burgundy-colored stems and veins of certain cultivars can be used to create natural plant dyes for textiles and crafts. [source]
Pollinator & Bird Food
WildlifeIf allowed to flower and set seed, African Spinach attracts pollinators and provides seeds that birds enjoy eating, supporting local wildlife. [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 the plant is 6-8 inches tall, typically 30-40 days after planting. Pinch or cut outer leaves at the base using clean scissors or pruners, leaving the central growing point intact. Harvest regularly (every 3-5 days) to encourage continuous production and prevent bolting. Young, tender leaves are best for cooking; harvest in early morning when moisture content is highest. The entire plant can be harvested at once if desired, or strip-harvest individual leaves for prolonged productivity throughout the season.
Fun Facts
- 🌱 African Spinach (Amaranthus tricolor) is unrelated to true spinach but offers superior heat tolerance, making it an excellent substitute in hot, humid climates where regular spinach bolts quickly.
- 🌱 Amaranth seeds are highly nutritious and have been cultivated as a staple grain in Africa, Asia, and Latin America for thousands of years; the entire plant—leaves, stems, and seeds—is edible and nutritious.
- 🌱 The plant's large, colorful leaves make it attractive enough for ornamental gardens; some cultivars are grown primarily for their striking foliage, demonstrating the dual culinary and decorative value of this versatile crop.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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