GrowSabzHow to grow cassava in pots
Also called Manioc, Yuca, Tapioca plant, manioc · Manihot esculenta
کاساوا
- ☀️ Sunlight
- 6–8hours daily
- 💧 Water
- 7.5 Levery 3 days, 50 L pot
- 🌡️ Ideal temp
- 25–30°C
- 🪴 Min pot
- 50 L45 cm deep
- 🧺 Harvest
- 240–365days from sowing
- ⚖️ Yield
- 2 kgper 20 L pot
Cassava is a long game. From seed it takes 12-18 months before you see a harvest, which is why most growers start from a nursery plant. Container growing is entirely possible, but the container has to be sized for a plant that will live in it for years.
Short answer
Grow cassava in a 50 litre container at least 45 cm deep, watering about 1000 ml per 10 litres of soil every 3 days, and keep temperatures between 25 and 30 °C. First harvest comes 240–365 days after sowing.
Where to plant it
What size pot does cassava need?
50 litres and 45 cm deep is the realistic minimum for a single plant. Pick a container below to see what changes.
| Container | Minimum size | Depth | Notes |
|---|---|---|---|
| Pot | 50 L | 45 cm | Requires very large pots with excellent drainage. |
| Grow bag | 50 L | 45 cm | Fabric bags can help with aeration but need frequent watering. |
| Open ground | — | 60 cm | Requires well-drained, deep soil for optimal root development. |
| Raised bed | 60 L | 50 cm | Excellent for providing deep, loose soil and good drainage. |
Watering
How often should you water cassava?
Every 3 days through the growing season, at about 1000 ml per 10 litres of soil — every 2 days in hot weather, every 5 days when it turns cool. Water in the early morning. Drip irrigation or furrow irrigation works best.
Too little water
- wilting leaves
- leaf yellowing
- stunted growth
- reduced root development
Too much water
- yellow lower leaves
- stem rot
- stunted growth
- root rot
Avoid: waterlogging; prolonged dry spells during establishment.
Climate
Can you grow cassava where you live?
No hardiness zone needed — compare your actual temperatures against the plant's own limits.
| Ideal range | 25 – 30 °C |
|---|---|
| Survives | 10 – 40 °C |
| Germinates above | 20 °C — best at 28 °C, about 10 days |
| Flowers drop | above 38 °C, or below 18 °C |
| Sunlight | 6–12 hrs/day, best 8 |
| Frost | Highly sensitive — will not survive it |
The flower-drop thresholds matter more than the survival ones. A plant can be perfectly alive at 40 °C and still give you nothing.
How cold is too cold for cassava? Check your temperaturesEnter your night low and day high — see if it survives, and if it will cropTimeline
Cassava growing stages, day by day
Click any stage to see what's happening. Durations shift with temperature — a warm season runs roughly a quarter faster than a cool one.
Feeding
Fertiliser schedule for cassava
Feed on the interval below, changing what you give as the plant shifts from making leaves to making fruit.
| Stage | What to use | Per 10 L | Every |
|---|
How to prepare each feed
Common mistakes
Why cassava fails, and how to avoid it
- A container that is too small
Below 50 litres the root run is too shallow. The plant grows, flowers late, and drops whatever it sets because it cannot support the crop.
- Watering too lightly
A daily splash wets the top few centimetres and nothing else. Cassava wants about 1000 ml per 10 litres of soil — one deep soak beats three shallow ones.
- Ignoring the flower-drop threshold
Above 38 °C, or below 18 °C, flowers fall before setting. The plant can look perfectly healthy and still give you nothing — shade it through the hottest hours.
- Harvesting too late
Left too long the colour changes, seeds harden and the flavour sharpens. Pick on the signs listed below, not on the calendar.
- Planting it beside Sugarcane
Both cassava and sugarcane are heavy feeders and will compete intensely for nutrients and water, leading to reduced yields for both.
- Leaving it out through a cold snap
Cassava is highly frost-sensitive. One night below 10 °C can end the plant outright — bring containers in or cover them.
Companions
What to plant with cassava
Good neighbours
Fixes nitrogen in the soil, improving fertility for cassava, and acts as a living mulch to suppress weeds and reduce soil erosion.
Nitrogen-fixing legume that enriches the soil and provides ground cover, reducing weed competition and soil moisture loss.
Roots produce a chemical that kills root-knot nematodes, a common pest of cassava, and flowers can deter other harmful insects.
Provides excellent ground cover, suppressing weeds and conserving soil moisture, which benefits cassava.
Keep apart from
Both cassava and sugarcane are heavy feeders and will compete intensely for nutrients and water, leading to reduced yields for both.
Bananas are also heavy feeders and have extensive root systems that can outcompete cassava for water and nutrients, especially in limited spaces.
Problems
Cassava pests and diseases
Each lists the weather that brings it on, so you know when to start checking rather than reacting once it's established.
Cassava Mosaic Disease humidity any · temp 20-30
A viral disease transmitted by whiteflies. Causes characteristic mosaic patterns, yellowing, and distortion of leaves, leading to stunted growth and significant yield loss.
Cassava Bacterial Blight humidity >80% · temp 25-30
Bacterial disease causing angular, water-soaked spots on leaves, wilting, blight, defoliation, and stem cankers. Favored by warm, humid conditions.
Cassava Brown Streak Disease humidity any · temp 20-30
Another viral disease transmitted by whiteflies. Causes yellowing along leaf veins, brown streaks on stems, and necrotic lesions in tubers, making them inedible.
Anthracnose humidity >85% · temp 20-25
Fungal disease causing dark, sunken lesions on leaves, petioles, and stems, often leading to dieback of young shoots and reduced plant vigor.
Root Rot humidity any · temp any
Caused by various fungi in waterlogged or poorly drained soils. Symptoms include yellowing, wilting, stunted growth, and soft, rotten tubers.
Cassava Mealybug humidity <60% · temp >25
Small, white, waxy insects that suck sap from young shoots and leaves, causing stunted growth, leaf distortion, and a 'bunchy top' appearance. Can lead to severe yield loss.
Cassava Green Mite humidity <50% · temp >28
Tiny mites that feed on the underside of young leaves, causing chlorosis (yellowing), leaf distortion, and reduced leaf size, severely impacting photosynthesis and tuber yield.
Whiteflies humidity >60% · temp >25
Tiny, white, winged insects that suck sap and are primary vectors for Cassava Mosaic Disease and Cassava Brown Streak Disease. Can also cause sooty mold.
Termites humidity any · temp any
Can cause significant damage by boring into the stems and tubers, leading to plant death or rendering tubers unmarketable. More prevalent in dry conditions.
Grasshoppers Locusts humidity any · temp >20
Chewing insects that can defoliate young cassava plants, especially during outbreaks, severely impacting growth and future tuber development.
Harvest
When to harvest cassava
First picking falls between day 240 and day 365, and the plant then keeps producing for about 180 days. Pick often — what you leave on the plant signals it to stop making more.
How to tell it's ready
- Tubers are firm and well-sized (check a test plant)
- Lower leaves may start to yellow and drop
- Plant has reached desired maturity (8-12 months for most varieties)
How much to expect
Storing it: Fresh cassava has a short shelf life (2-3 days) at room temperature. For longer storage, peel, cut, and freeze, or process into flour.
Questions
Cassava: common questions
How long does cassava take to grow?
About 300 days from sowing to the first harvest, with picking usually starting between day 240 and day 365. It then keeps producing for roughly 180 more days. Warm weather pulls that forward; cool weather pushes it back.
What size pot does cassava need?
At least 50 litres and 45 cm deep for one plant. A raised bed wants 60 litres of soil and 50 cm of depth.
How often should I water cassava?
About 1000 ml per 10 litres of soil, every 3 days in normal weather — every 2 days when it is hot and every 5 days when cool. Water in the early morning.
What temperature does cassava need?
It does best between 25 °C and 30 °C and survives from 10 °C to 40 °C. Seed needs soil above 20 °C to germinate, ideally around 28 °C.
Can I grow cassava in winter?
Not outdoors anywhere that frosts — it is highly frost-sensitive and will not survive it. In a frost-free winter it grows slowly; anywhere colder, treat it as a warm-season crop.
How do I know when cassava is ready to harvest?
Tubers are firm and well-sized (check a test plant); Lower leaves may start to yellow and drop; Plant has reached desired maturity (8-12 months for most varieties). Once picked: fresh cassava has a short shelf life (2-3 days) at room temperature. for longer storage, peel, cut, and freeze, or process into flour.
How much does one cassava plant produce?
Roughly 2 kg from a 20 litre container, or about 5 kg in open ground. Larger containers give proportionally more, up to a point.