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Repotting guide

When & how to repot Cacao (Theobroma cacao)

Also called Cacao, Cocoa tree, Chocolate tree.

More about cacao

About Cacao

Theobroma cacao · also called Cacao, Cocoa tree · tropical

Cacao is a small understorey rainforest tree, the source of chocolate, bearing large pods directly on its trunk. It demands deep shade when young, constant warmth, very high humidity and rich, moist, well-drained soil. Strictly frost-tender, it makes an exacting greenhouse or houseplant. All parts contain theobromine, toxic to pets.

Mature size: Usually 4-8 m tall in cultivation; easily kept to 1-2 m as a container or conservatory plant with pruning.

How to tell cacao needs repotting

Repotting on a calendar is less reliable than reading the plant. For cacao, watch for these signs:

For the underlying biology of a pot-bound root system and why it stalls a plant, see our guide to spotting and fixing a root-bound plant.

How often to repot cacao

Every 2–3 years; top-dress in the in-between years. Cacao's growth habit — small, slender evergreen tree with tiered branches and large, glossy, drooping leaves that flush bronze-red when new. flowers and large ridged pods are borne directly on the trunk and main branches (cauliflory). — sets the pace. Cacao is a small understorey rainforest tree, the source of chocolate, bearing large pods directly on its trunk. It demands deep shade when young, constant warmth, very high humidity and rich, moist, well-drained soil. Strictly frost-tender, it makes an exacting greenhouse or houseplant. All parts contain theobromine, toxic to pets.

What size pot to step cacao up to

Move up exactly one pot size. A heavy cacao dropped into a vastly bigger pot sits in a reservoir of wet soil its roots cannot reach, which rots them and destabilises the plant. In the years between repots, lift off and replace the top 3–5 cm of soil (top-dressing) instead — it refreshes nutrients without the shock of a full repot.

Not sure of the exact diameter? Our pot size calculator takes the current pot and root spread and tells you the right next size — it deliberately recommends a single step up, never a big jump.

The best time of year to repot cacao

Early spring, just as new growth restarts, is the ideal window for cacao. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Step-by-step: repotting cacao

  1. Consider top-dressing first. If cacao is not badly root-bound, scrape off and replace the top 3–5 cm of soil instead — far less shock for a big plant that hates moving.
  2. Get help and one size up. For a full repot, choose a pot just one size larger. A heavy plant needs two people and a stable, free-draining pot.
  3. Ease it out on its side. Lay the plant down, slide the pot off, and gently loosen the outer roots. Do not bare-root a mature specimen.
  4. Repot at the same depth. Add fresh rich, humus-laden, free-draining loam beneath and around the rootball, keeping the original soil line. Firm it so the trunk is stable and upright.
  5. Water and leave it put. Water thoroughly, then leave cacao in the same spot and light — moving and repotting at once is what makes it drop leaves.

Aftercare

Leave cacao in exactly the same spot and light it was in before — moving and repotting at the same time is what makes a big specimen drop leaves. Water it in well, then let the top of the soil dry before watering again so the larger volume of fresh soil does not stay sodden. Do not fertilise for about 4 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for cacao

Cacao wants 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. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting cacao — frequently asked questions

How often should you repot cacao?

Every 2–3 years; top-dress in the in-between years for cacao. Fully repot cacao only every 2–3 years; in the in-between years just top-dress the top 3–5 cm of soil. Step up one pot size in spring with rich, humus-laden, free-draining loam. It is heavy and hates being moved, and a vastly oversized pot holds water against the roots and rots them.

What size pot does cacao need?

Move up exactly one pot size. A heavy cacao dropped into a vastly bigger pot sits in a reservoir of wet soil its roots cannot reach, which rots them and destabilises the plant. In the years between repots, lift off and replace the top 3–5 cm of soil (top-dressing) instead — it refreshes nutrients without the shock of a full repot. Use our pot size calculator to size it from the plant's current pot and root spread.

When is the best time of year to repot cacao?

Early spring, just as new growth restarts, is the ideal window for cacao. The plant is moving into its strongest growth phase and re-roots into fresh soil quickly. Avoid repotting in winter dormancy or, for flowering plants, while it is in bud or bloom — recovery is slowest then and you risk dropping the flowers.

Should you top-dress or fully repot cacao?

For a big, heavy cacao, top-dressing — replacing the top 3–5 cm of soil — is the gentler option most years, with a full repot only every 2–3 years. A mature specimen sulks and drops leaves when fully repotted, so do it as rarely as the roots allow.

Should you fertilise cacao after repotting?

Not immediately. Wait about 4 weeks after repotting cacao. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.

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