How to Grow Elephantotis
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Elephantotis
Colocasia esculenta var. antiquorum
vegetableElephantotis, commonly known as taro or malanga, is a tropical perennial plant grown for its starchy, edible corms (underground tubers) and leaves. The plant features large, heart-shaped leaves on tall petioles and produces small white flowers. It has been cultivated for thousands of years as a staple food crop in tropical and subtropical regions.
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Example Elephantotis timeline · Pittsburgh, PA (Zone 6b)
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Plant Elephantotis
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 Elephantotis
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9-11; can be grown as an annual in cooler zones
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Establishment
3-4 weeksCorm is planted and begins sprouting; small shoots emerge from the soil with developing petioles
Keep soil consistently moist and warm (70-80°F ideal). Water regularly but avoid waterlogging. Mulch around plants to retain moisture and suppress weeds.
Vegetative Growth
8-12 weeksPlant develops multiple large heart-shaped leaves on elongating petioles; foliage becomes lush and substantial
Maintain consistent moisture. Apply balanced fertilizer every 4-6 weeks. Mulch heavily. Remove any flower spikes to direct energy to corm development. Monitor for pests.
Flowering
Variable, can occur multiple timesSmall white or cream-colored spadix flowers (calla lily-like) emerge among the foliage on short stems
Pinch off flower spikes to encourage larger corm production. Flowers are edible but removing them increases tuber yield. Continue regular fertilizing and watering.
Corm Development
8-10 weeksUnderground corms enlarge as plant continues producing foliage; secondary cormels develop around main corm
Reduce nitrogen fertilizer, increase potassium and phosphorus to promote corm enlargement. Maintain moisture but allow slight drying between waterings. Continue regular watering.
Harvest Ready
At maturityMature corms have reached full size; foliage may yellow slightly; plant has been growing 6-8+ months
Withhold water slightly 1-2 weeks before harvest to firm up corms. Harvest carefully to avoid damaging tubers. Leave smaller cormels in ground to replant for next season.
Common Pests
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Plant resistant varieties; maintain good air circulation; remove infected leaves; apply copper fungicide; ensure proper drainage to reduce humidity
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Increase humidity; spray with water; apply neem oil or insecticidal soap; avoid dusty conditions
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Inspect regularly; remove with cotton swab dipped in alcohol; spray with insecticidal soap or neem oil
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Remove by hand; apply horticultural oil; spray with neem oil; improve air circulation
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Remove by hand; create barriers with copper tape; use slug traps with beer; apply diatomaceous earth
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Improve drainage; avoid overwatering; use well-draining soil; sterilize tools; remove affected plants; apply fungicide if caught early
Uses
Staple Starch and Carbohydrate Source
CulinaryTaro corms are a nutritious staple food boiled, baked, roasted, or fried, providing complex carbohydrates and dietary fiber. The leaves (also called callaloo) are cooked as greens and rich in vitamins and minerals. [source]
Traditional Health and Digestive Support
MedicinalIn traditional medicine, taro is valued for digestive health, blood sugar regulation, and nutrient density. It contains compounds that may support immune function and provide anti-inflammatory benefits. [source]
Versatile Ingredient
CulinaryCorms can be processed into flour for baking, made into chips, added to curries and stews, or used in traditional dishes like taro bubble tea. Leaves are used in many Asian and Caribbean cuisines. [source]
Ornamental and Ecological Value
WildlifeThe large, dramatic foliage makes elephantotis an attractive tropical ornamental plant for gardens and landscapes. It attracts pollinators and provides habitat for beneficial insects. [source]
Traditional and Cultural Significance
HouseholdTaro holds deep cultural and historical importance in Pacific, African, and Asian cuisines, featuring prominently in traditional ceremonies and celebrations. It remains a dietary staple in many communities. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest when corms are 6-8 months old or when foliage begins to yellow. Carefully dig up entire plant, taking care not to damage corms. Harvest in fall before first frost in cooler zones. Leave smaller secondary cormels in place for replanting. Store harvested corms in cool (50-60°F), dry, dark location for 1-2 weeks before use. Mature corms can be stored for several months in proper conditions. Young leaves can be harvested throughout the season for cooking.
Fun Facts
- 🌱 Taro leaves have a unique waxy coating that causes water droplets to bead and roll off—this property has inspired the development of self-cleaning surfaces in nanotechnology.
- 🌱 Elephantotis has been cultivated for at least 9,000 years and is believed to have originated in Southeast Asia or the South Pacific, making it one of the oldest cultivated crops.
- 🌱 The leaves contain calcium oxalate crystals which create a tingling sensation in the mouth if eaten raw; proper cooking completely neutralizes this irritant, making the leaves safe and nutritious.
Gardening Terms
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