How to Grow Cassava
Cassava
Manihot esculenta
vegetableCassava is a tropical perennial shrub grown for its starchy, edible roots that are a staple carbohydrate source for millions worldwide. The plant produces long, slender tubers that can be boiled, fried, or processed into flour. It is highly drought-tolerant and thrives in poor soils where many other crops fail.
Looking for a specific variety?
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in tropical and subtropical zones 10b-13b; can be grown as an annual in zone 9 with protection
Sign up to see your zone highlighted.
Growth Stages
Establishment
4-6 weeksStem cuttings produce roots and early leaf shoots; plant develops initial root system and leafy above-ground structure
Keep soil consistently moist but not waterlogged. Provide high sunlight. Remove competing weeds regularly. Mulch around base to retain moisture and regulate temperature.
Vegetative Growth
3-6 monthsPlant develops multiple stems and compound palmate leaves with 5-9 lobes; above-ground canopy expands rapidly while root tubers begin enlarging underground
Apply balanced fertilizer (NPK 10-10-10) monthly. Maintain consistent moisture and full sun exposure. Prune lower leaves to improve air circulation and reduce pest habitat.
Tuber Development
4-8 monthsRoot system expands with primary and secondary tuber formation; plant develops fuller canopy while energy shifts toward root enlargement
Reduce nitrogen fertilizer; apply potassium and phosphorus-rich fertilizer to encourage tuber bulking. Maintain moderate watering. Ensure well-draining soil to prevent root rot.
Maturation
2-4 monthsTubers reach harvestable size (1-3 pounds each); plant may produce small reddish flowers; leaves may yellow slightly as plant approaches harvest readiness
Reduce watering frequency. Monitor for signs of pest damage. Tubers can remain in ground for extended storage; harvest as needed over several months.
Harvest
Harvest period extends over weeks or months as neededRoots fully mature and contain maximum starch content; plant can be partially harvested or fully dug for complete root removal
Carefully dig to avoid damaging tubers. Handle roots gently to prevent bruising. Can be stored in cool conditions or left in ground for up to 2 years.
Common Pests
-
Spray with insecticidal soap or neem oil; introduce predatory mites; practice crop rotation
-
Use yellow sticky traps; spray with insecticidal soap; encourage natural predators
-
Apply horticultural oils; prune affected stems; use systemic insecticides if severe
-
and
Hand-pick; use row covers on young plants; apply spinosad or organic pesticides
-
Use disease-resistant varieties; control whitefly vectors; remove and destroy infected plants
-
Ensure excellent drainage; avoid overwatering; plant in raised beds or mounds; use fungicide if necessary
Uses
Staple Starch & Carbohydrate Source
CulinaryCassava tubers are boiled, fried, roasted, or mashed as a primary carbohydrate staple in tropical cuisines. The roots can be processed into flour, starch, and other grain-like products used in baking and cooking. [source]
Flour & Tapioca Production
CulinaryCassava roots are processed into cassava flour (farinha) and tapioca pearls, which are used in baking, puddings, and as gluten-free alternatives. The starch is extracted and dried for long-term storage and commercial use. [source]
Leafy Greens
CulinaryYoung cassava leaves are edible and highly nutritious, containing protein, vitamins, and minerals. They can be cooked as a green vegetable or dried and ground into protein-rich flour supplements. [source]
Nutritional & Traditional Medicine
MedicinalCassava roots are rich in carbohydrates, vitamin C, and potassium. In traditional medicine, cassava preparations have been used to support digestive health and as a source of calories for malnutrition prevention in developing regions. [source]
Industrial Starch & Biofuel Applications
HouseholdCassava starch is used in textile manufacturing, paper production, adhesives, and biodegradable plastics. The plant is also cultivated as a feedstock for bioethanol and biofuel production. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cassava matures in 8-12 months (sometimes up to 18-24 months for maximum starch). Harvest by carefully digging around the plant base and pulling tubers free; use a spade or garden fork to loosen soil without damaging roots. Tubers can remain in ground for up to 2 years after maturity, allowing gradual harvesting as needed. Once dug, tubers deteriorate within days if not properly stored in cool, dark conditions or processed immediately. For highest starch content, harvest when plant reaches full maturity (leaves may start to yellow).
Fun Facts
- 🌱 Cassava is the third-largest source of food carbohydrates in the tropics after rice and corn, feeding over 800 million people globally, yet remains relatively unknown in temperate regions.
- 🌱 The plant's cyanogenic glucosides (natural compounds) must be removed through proper processing (soaking, cooking, or fermenting) before consumption to ensure food safety; modern cassava breeding has produced low-cyanide varieties.
- 🌱 Cassava can survive and produce in severely degraded soils where most crops fail, making it a crucial security crop for food security in drought-prone and nutrient-poor regions of Africa, South America, and Asia.
Want personalized planting timelines?
Sign up to get frost dates, task lists, and more for your zone.
Get started free