How to Grow Calaloo

Calaloo

Amaranthus viridis

vegetable

Calaloo is a leafy green vegetable popular in Caribbean and African cuisines, known for its tender, nutrient-rich leaves and edible stems. It grows quickly in warm weather and produces abundant foliage that can be harvested continuously throughout the season. The plant is highly adaptable and thrives in tropical and subtropical climates.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum; tolerates partial shade in hot climates

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Water: Keep soil consistently moist but not waterlogged. Water deeply 2-3 times weekly during growing season. In hot climates, may need daily watering. Mulch to retain moisture.

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Spacing: 6-12 inches

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Days to maturity: 30-50

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Planting depth: 0.25-0.5 inches

Soil

Type: Well-draining, fertile loamy soil rich in organic matter

pH: 6.0-7.0

Amendments:

Compost Well-rotted manure Peat moss or coconut coir NPK balanced fertilizer (10-10-10)

Growing Zones

Find your zone →

Zones 9b-11 (warm season annual; can be grown seasonally in cooler zones)

9b 10a 10b 11a 11b

Growth Stages

Seedling

7-10 days

Small cotyledons emerge with thin stems and tiny oval leaves. Plant is delicate and light green.

Keep soil moist but not soggy. Provide bright light. Thin seedlings to proper spacing once they have 2-3 true leaves.

Vegetative Growth

2-3 weeks

Plant develops multiple stems and rapidly produces elongated, lance-shaped leaves. Foliage becomes dense and bushy.

Fertilize every 2-3 weeks with balanced fertilizer diluted to half strength. Pinch growing tips to encourage bushier growth. Ensure consistent watering.

Leaf Production

2-4 weeks

Mature leaves form along stems; plant reaches 12-24 inches tall. Leaves are tender and dark green with prominent veining.

Begin harvesting outer leaves regularly to encourage continued production. Maintain consistent moisture and fertility. Monitor for pests.

Peak Harvest

4-8 weeks

Plant is fully established with abundant tender leaves and edible stems suitable for harvest. Continuous leaf production occurs.

Harvest leaves and tender stems regularly to keep plant productive. Continue weekly fertilization at half-strength. Water consistently. Remove any yellowing leaves.

Senescence/Decline

Variable

Plant begins flowering and setting seed; leaves may become tougher and more bitter. Growth slows in cooler weather.

Pull plants and compost before flowering. In warm climates, succession plant every 3-4 weeks for continuous harvest.

Companion Planting

Plan your garden →

Plant with:

Basil Okra Cucumber Beans Pumpkin Corn Eggplant

Avoid planting near:

Fennel Dill Cruciferous vegetables (excessive competition)

Common Pests

Hand-pick larvae, use Bacillus thuringiensis (Bt), neem oil spray, or insecticidal soap. Remove affected leaves.
Strong water spray, insecticidal soap, neem oil, or horticultural oil. Introduce ladybugs for biological control.
Yellow sticky traps, neem oil, insecticidal soap, or reflective mulch. Spray undersides of leaves.
Increase humidity, strong water spray, neem oil, or miticide. Avoid over-fertilizing with nitrogen.
Remove affected leaves, improve air circulation, avoid overhead watering, apply copper fungicide if severe.

Uses

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Caribbean & African Cooking

Culinary

Calaloo is a staple ingredient in Caribbean cuisine, used in the dish 'Calaloo' (a spinach-like side dish) and soups. The tender leaves and stems are boiled, sautéed, or added to stews and are prized for their mild, slightly earthy flavor similar to spinach but more delicate. [source]

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Nutritional Powerhouse

Culinary

Rich in vitamins A, C, and K, iron, calcium, and folate. Raw or cooked leaves provide excellent nutrition for salads, smoothies, and cooked dishes. High antioxidant content supports overall health. [source]

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Traditional Medicine Uses

Medicinal

Used in traditional African and Caribbean herbalism for digestive support, anti-inflammatory properties, and general wellness. Often prepared as a tea or in soups for folk medicinal purposes. [source]

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Sustainable Gardening

Household

Extremely fast-growing and productive, making it ideal for small-space gardeners, container growing, and food security in warm climates. Regenerates quickly with leaf harvesting, providing continuous yields. [source]

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Pollinator & Bird Support

Wildlife

When allowed to flower, calaloo attracts bees and other pollinators. Seeds are consumed by birds and beneficial insects, 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 leaves 30-40 days after planting when plant is 8-12 inches tall. Pinch or cut tender top 4-6 inches of stems and outer leaves regularly—this encourages bushier growth and continued productivity. Harvest in the morning after dew dries for best flavor. Young, tender leaves are most palatable; older leaves become tougher. Continuous harvesting extends the productive season. Can be harvested for 6-8 weeks in ideal conditions.

Fun Facts

🌱 Calaloo is known by many names across the Caribbean and Africa, including callaloo, callalo, and 'African spinach,' reflecting its widespread cultural importance across tropical regions.
🌱 The plant is exceptionally heat-tolerant and actually grows better in hot weather than true spinach, making it perfect for summer gardening in warm climates where spinach bolts.
🌱 Amaranthus species are pseudo-cereals—some varieties produce edible seeds that are nutritionally complete proteins containing all essential amino acids, used as grain in some cultures.

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