Cacao
Theobroma Cacao
Theobroma cacao, commonly known as the cacao or chocolate tree, is cherished for its seeds, which are used to produce chocolate. Native to tropical regions, this tree thrives in humid environments and requires careful attention to light and moisture for optimal growth.
Everything it needs
9 essentials at a glance
Watering
The cacao tree prefers consistently moist soil.
Water it deeply once a week, allowing the top inch of soil to dry out between waterings. In the dry season, increase watering frequency to twice a week. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause leaf wilting and browning tips.
Light
Cacao trees thrive in partial shade, ideally receiving 4-6 hours of filtered sunlight daily.
They benefit from being placed near taller plants that can provide dappled light, as direct sunlight can scorch their leaves. Tolerance to low light is moderate, but too little light will stunt growth.
Soil
Cacao trees prefer a rich, well-draining soil with a pH range of 6.0 to 7.0.
A potting mix composed of peat moss, compost, and perlite works well. Ensure that the pot has drainage holes to prevent waterlogging, which can lead to root rot.
Humidity
Cacao trees thrive in high humidity levels, ideally between 70-90%.
To increase humidity, mist the leaves regularly or place a humidifier nearby. Signs of low humidity include leaf curling and browning edges, while excessive humidity can lead to fungal issues.
Temperature
The ideal temperature range for cacao trees is between 65-90°F (18-32°C).
They are sensitive to cold and should be protected from temperatures below 50°F (10°C). Cacao trees thrive in USDA hardiness zones 10-12, making them suitable for tropical and subtropical climates.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or similar.
Fertilize every 4-6 weeks during the growing season (spring and summer), and reduce to every 8-10 weeks in fall and winter. Signs of nutrient deficiency include yellowing leaves and poor growth.
Pruning
Prune cacao trees annually to maintain shape and remove any dead or diseased branches.
Use clean, sharp pruning shears and cut just above a leaf node. Deadheading is not necessary, but removing spent flowers can encourage new growth.
Repotting
Repot cacao trees every 1-2 years or when they outgrow their pot.
Signs that repotting is needed include roots growing out of the drainage holes and stunted growth. Choose a pot that is 1-2 inches larger in diameter than the current one, and follow these steps: gently remove the tree from its pot, loosen any tightly bound roots, and place it in fresh potting mix.
Propagation
Cacao trees can be propagated through seeds or grafting.
For seed propagation, collect seeds from ripe cacao pods, clean them, and plant them in a moist potting mix. Keep them warm and humid until germination, which takes about 2-3 weeks. Grafting is best done in the spring when the tree is actively growing.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency
How to fix it
Check soil moisture and adjust watering schedule. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Leaf curling
Why it happens
Low humidity or pest infestation
How to fix it
Increase humidity through misting or using a humidifier. Check for pests like aphids or spider mites and treat accordingly.
Brown leaf tips
Why it happens
Under-watering or low humidity
How to fix it
Ensure consistent watering and increase humidity levels to prevent further damage.
Root rot
Why it happens
Over-watering and poor drainage
How to fix it
Allow the soil to dry out and improve drainage. If severe, consider repotting the plant in fresh, dry soil.
Flower drop
Why it happens
Stress from temperature fluctuations or inadequate light
How to fix it
Maintain stable temperatures and ensure the tree receives adequate filtered light.
Care through the year
Spring
In spring, increase watering frequency as the cacao tree enters its active growth phase. Fertilize every 4-6 weeks with a balanced fertilizer.
Summer
During summer, ensure the tree receives adequate shade from direct sunlight. Maintain high humidity levels and monitor for pests.
Fall
In fall, reduce fertilizing to every 8-10 weeks as the tree prepares for dormancy. Continue regular watering but allow the soil to dry slightly between waterings.
Winter
In winter, protect the cacao tree from cold drafts and maintain indoor temperatures above 65°F (18°C). Reduce watering frequency as growth slows.
Toxicity & Safety
Cacao trees are not considered toxic to pets or children. However, the seeds contain theobromine, which can be harmful in large quantities. Symptoms of ingestion may include vomiting, diarrhea, and increased heart rate.
Good to know
How often should I water my cacao tree?
Water your cacao tree deeply once a week, allowing the top inch of soil to dry out between waterings. In dry seasons, increase to twice a week.
What type of soil is best for cacao trees?
Cacao trees thrive in rich, well-draining soil with a pH of 6.0 to 7.0. A mix of peat moss, compost, and perlite is ideal.
Why are my cacao tree leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
Can I grow a cacao tree indoors?
Yes, cacao trees can be grown indoors if provided with sufficient light and humidity. Ensure they receive 4-6 hours of filtered sunlight daily.
What temperature is ideal for cacao trees?
Cacao trees prefer temperatures between 65-90°F (18-32°C) and should be protected from cold drafts or temperatures below 50°F (10°C).
How do I propagate cacao trees?
Cacao trees can be propagated from seeds or through grafting. For seeds, clean and plant them in moist potting mix, keeping them warm and humid.
What are the signs of humidity stress in cacao trees?
Signs of humidity stress include leaf curling, browning edges, and stunted growth. Increase humidity through misting or using a humidifier.
Grows well with
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.