How to Grow Cacao Tree
Theobroma cacao
Cacao trees are tropical understory plants requiring warmth (min 15 degrees C), high humidity, and dappled shade — in temperate climates they must be grown in a heated greenhouse or conservatory. Plant in rich, free-draining soil with plenty of organic matter and mist regularly to maintain humidity. Feed monthly with a balanced fertiliser, switching to high-potash when pods form. The striking pods grow directly from the trunk and main branches; each takes 5-6 months to ripen. Prune lightly after harvest to remove dead wood and improve airflow.
Yearly Lifecycle
Care Essentials
Feed monthly from spring to autumn with a balanced fertiliser. Switch to a high-potash liquid feed when pods are developing to support fruit set and flavour.
Watch For
- Black pod disease (Phytophthora)
- Witches broom disease
- Mealybugs
- Scale insects
- Thrips
Companions
Banana, Heliconia, Ginger, Bird of Paradise
Pet Safety
Care Requirements
Light
Dappled shade or bright indirect light
Naturally grows as a tropical understory tree beneath forest canopy. Prefers dappled light or bright indirect light; direct midday sun can scorch leaves. Three to four hours of gentle morning sun is ideal when grown under glass.
Watering
Consistently moist, never waterlogged
Keep soil evenly moist at all times; cacao does not tolerate drought or waterlogging. Water deeply 2-3 times a week in warm weather, less in winter. Mist foliage regularly to maintain the high humidity (60-80%) it needs.
Fertilizing
Monthly balanced feed; high-potash when fruiting
Apply a balanced liquid fertiliser monthly from spring through autumn. Switch to a high-potash feed once pods begin to develop. Mulch annually with well-rotted compost or leaf mould.
Pruning
Light post-harvest pruning only
Prune lightly after each harvest cycle to remove dead wood and improve air circulation. Remove shoots that develop below the first jorquette (branch fork). Avoid heavy pruning which stresses the tree and reduces future fruiting.
Spacing
6m apart; or single specimen under glass
Allow 6m between trees in tropical plantations. In temperate climates usually grown as a single specimen in a large conservatory or greenhouse border. Needs space for its wide lateral branch spread.
Humidity
High humidity essential (60-80%)
Cacao is extremely sensitive to dry air. In heated greenhouses, group with other tropical plants, use pebble trays with water, and mist daily. Consistently low humidity causes leaf drop and prevents pod development.
