Cacao (Cocoa tree) care

Light

Bright but filtered. Cacao burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. An understorey species that needs filtered, dappled light and 30-50% shade, especially when young; direct sun scorches the large soft leaves. Bright indirect light indoors suits it well, away from harsh midday sun. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering cacao: keep soil evenly moist; water when the surface just begins to dry, often 2-3 times weekly. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Needs consistent moisture and dislikes both drying out and waterlogging. Use soft, tepid water and keep the rootball reliably damp in warmth, easing back slightly when growth slows. Never let it wilt from drought.

Soil and pot

Cacao grows best in rich, humus-laden, free-draining loam. Wants deep, fertile, organic, moisture-retentive but well-drained soil at pH about 5.0-7.0. In containers use a peat-free, humus-rich mix with bark and perlite to hold moisture while draining freely. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Cacao sits happiest at around 70-100% humidity and 21-32°C (70-90°F). Requires very high, constant humidity typical of rainforest floor; below about 60% the leaf margins brown and growth suffers. Use humidifiers, pebble trays, misting and grouping, and keep it well away from radiators and draughts. If you keep the room above 21 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed cacao sparingly. Feed regularly in active growth with a balanced fertiliser every 3-4 weeks spring to autumn, supplemented with organic matter; cacao responds to rich feeding but is sensitive to fertiliser salt build-up, so keep doses moderate and flush pots occasionally. Reduce in winter. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on cacao in the Growli community. Each is annotated with the most common cause so you know where to start.

• Low-humidity leaf browning — Dry indoor air is the commonest problem, browning leaf edges and dropping leaves; sustained high humidity is essential to keep it healthy.
• Cold sensitivity — Chilling below about 10°C damages foliage and stops growth; keep it consistently warm and away from cold draughts and windows.
• Leaf scorch in direct sun — As an understorey tree, full sun bleaches and burns the leaves; provide bright filtered light or light shade.
• Mealybugs, scale and thrips — Warm, still indoor conditions invite sap-sucking pests on the soft foliage; inspect regularly and treat with horticultural soap or oil.

Propagation

Grown from fresh seed (beans), which is recalcitrant and must be sown immediately as it loses viability within days of removal from the pod. Selected clones are propagated by semi-hardwood cuttings, often under mist, or by grafting and budding to preserve fruiting quality. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Cacao is toxic to pets. Cacao is toxic to cats and dogs because it contains the methylxanthines theobromine and caffeine, the same compounds that make chocolate (made from these beans) dangerous to pets per the ASPCA and Merck Veterinary Manual. Ingestion of pods, beans or leaves can cause vomiting, diarrhoea, hyperactivity, racing heart, tremors and seizures; keep all plant parts away from pets. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Cacao deep-dive guides

Every aspect of cacao care, each with its own calibrated guide:

• Cacao watering schedule
• Cacao light requirements
• Best soil mix for cacao
• Cacao fertilizing guide
• When to repot cacao
• How to propagate cacao
• Cacao growth rate & size
• Cacao cold hardiness
• Cacao temperature & humidity
• Is cacao toxic to cats & dogs?
• Is cacao toxic to cats?
• Is cacao toxic to dogs?

Featured in these plant shortlists

Cacao qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Houseplants toxic to cats & dogs — The common houseplants the ASPCA lists as toxic to cats and dogs — the ones to keep out of reach, each with its symptoms and a safe alternative.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Cacao is also known as Cacao, Cocoa tree, and Chocolate tree.

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