How to Grow Green Calaloo
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Green Calaloo
Amaranthus viridis
vegetableGreen calaloo is a fast-growing leafy green vegetable popular in Caribbean and African cuisines, known for its tender, nutritious leaves and mild flavor. The plant produces bushy foliage with edible leaves that can be harvested continuously throughout the growing season. It's heat-loving, drought-tolerant, and highly productive in warm climates.
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Example Green Calaloo timeline · Pittsburgh, PA (Zone 6b)
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Plant Green Calaloo
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 Calaloo
Around May 17≈ 30 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Green Calaloo dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9-12; grows as warm-season annual in cooler zones
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Get my Green Calaloo timeline →Growth Stages
Germination
5-10 daysTiny seedlings emerge with cotyledons (seed leaves) visible within 5-10 days
Keep soil consistently moist but not waterlogged. Provide warmth (70-80°F optimal). Thin seedlings to prevent crowding.
Seedling & Early Growth
2-3 weeksPlant develops 2-4 true leaves, becomes bushy with rapid stem elongation
Continue consistent moisture. Apply balanced fertilizer when 3-4 leaves appear. Provide full sun exposure. Thin to final spacing if direct seeded.
Vegetative Growth
3-4 weeksVigorous leaf production with increasing plant size and dense foliage canopy
Begin leaf harvesting when plant reaches 6-8 inches tall. Feed with nitrogen-rich fertilizer every 2-3 weeks. Water consistently during dry spells.
Peak Production
4-8 weeksMature plant 12-24 inches tall with abundant tender leaves ready for continuous harvest
Pinch tips regularly to encourage bushier growth and delay bolting. Harvest outer leaves while center continues growing. Maintain moisture.
Late Season / Flowering
2-4 weeksPlant may begin flowering (small greenish flowers) as days shorten or temperatures cool; leaves become tougher
Remove flowering stems to extend leaf production. Consider replanting for successive harvests. Harvest remaining tender leaves and end of season.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use floating row covers on seedlings; spray neem oil; encourage beneficial insects; dust with diatomaceous earth
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Hand-pick larvae; apply Bacillus thuringiensis (Bt); use pheromone traps; maintain clean garden beds
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Remove affected leaves; spray neem oil or insecticidal soap; encourage natural predators
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Increase humidity with misting; spray water forcefully on undersides of leaves; apply neem oil; avoid overhead watering stress
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Use yellow sticky traps; spray insecticidal soap or neem oil; encourage parasitic wasps
Uses
Caribbean Cooking & Stews
CulinaryGreen calaloo is a staple in Caribbean cuisines, particularly in dishes like calaloo soup and stews, where the tender leaves provide a mild flavor and nutritious addition to soups, curries, and vegetable dishes. [source]
Sautéed Greens & Salads
CulinaryYoung, tender leaves can be eaten raw in salads or lightly sautéed with garlic and oil as a side dish, similar to spinach, offering a delicate taste when young. [source]
Nutritional & Health Benefits
MedicinalGreen calaloo is rich in vitamins A, C, and K, along with minerals like iron, calcium, and manganese. Traditionally used in folk medicine for its anti-inflammatory and antioxidant properties. [source]
African & South Asian Cuisines
CulinaryKnown as 'amaranth greens' in some regions, it's used extensively in African and South Asian cooking, including Ethiopian, Nigerian, and Indian curries and side dishes. [source]
Pollinator Support
WildlifeWhen allowed to flower, green calaloo produces small flowers that attract bees and beneficial insects, supporting garden pollinator populations. [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 when plant is 6-8 inches tall (about 30-40 days). Pinch off upper 3-4 inches of stems and tender leaves regularly to encourage bushiness and prevent early bolting. Harvest in the morning after dew dries for best flavor and texture. Continue harvesting outer leaves throughout the season while plant continues producing inner growth. Plants remain productive for 8-12 weeks with proper harvesting and feeding. Harvest before flowering for most tender leaves.
Fun Facts
- 🌱 Green calaloo is one of the fastest-growing leafy vegetables available, reaching harvestable size in just 30-40 days under warm conditions.
- 🌱 The plant is extremely heat and drought-tolerant, thriving where many traditional greens like lettuce and spinach would bolt or struggle in hot summers.
- 🌱 Calaloo is related to grain amaranth and comes from Africa and tropical regions; it has been cultivated for thousands of years and is known by over 100 different common names worldwide (including Chinese spinach, Indian spinach, and vegetable amaranth).
Gardening Terms
New to gardening? Learn about terms used in this guide:
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