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Repotting guide

When & how to repot Cambuci (Myrciaria tenella)

Also called Cambuci, Cambuí.

More about cambuci

About Cambuci

Myrciaria tenella · also called Cambuci, Cambuí · tropical

Cambuci is a compact Brazilian Myrtaceae shrub or small tree bearing intensely flavored red-to-orange fruits that cling to stems. Adaptable to tropical and warm-subtropical conditions, it is more drought-tolerant than most jaboticaba relatives, thrives in sandy well-drained soil, and makes an elegant subject for containers and bonsai.

Mature size: 1–6 m tall (3–20 ft); highly variable; typically 2–3 m in cultivation

Watch for — Root rot in poorly draining soil: Despite moderate drought tolerance, standing water causes rapid root rot. Ensure pots have drainage holes and raise container plants on feet to allow free drainage.

How to tell cambuci needs repotting

Repotting on a calendar is less reliable than reading the plant. For cambuci, 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 cambuci

Every 2–3 years; top-dress in the in-between years. Cambuci's growth habit — semi-deciduous shrub or small tree with a smooth, scaly trunk; cauliflorous fruiting on stems and branches — sets the pace. Cambuci is a compact Brazilian Myrtaceae shrub or small tree bearing intensely flavored red-to-orange fruits that cling to stems. Adaptable to tropical and warm-subtropical conditions, it is more drought-tolerant than most jaboticaba relatives, thrives in sandy well-drained soil, and makes an elegant subject for containers and bonsai.

What size pot to step cambuci up to

Move up exactly one pot size. A heavy cambuci 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 cambuci

Early spring, just as new growth restarts, is the ideal window for cambuci. 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 cambuci

  1. Consider top-dressing first. If cambuci 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 well-drained sandy to loamy soil; ph 5.5–6.5 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 cambuci in the same spot and light — moving and repotting at once is what makes it drop leaves.

Aftercare

Leave cambuci 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 cambuci

Cambuci wants well-drained sandy to loamy soil; ph 5.5–6.5. Performs well in coastal sandy soils. Amend heavy clay with grit and compost to improve drainage. Avoid waterlogged conditions at any stage. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting cambuci — frequently asked questions

How often should you repot cambuci?

Every 2–3 years; top-dress in the in-between years for cambuci. Fully repot cambuci 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 well-drained sandy to loamy soil; ph 5.5–6.5. It is heavy and hates being moved, and a vastly oversized pot holds water against the roots and rots them.

What size pot does cambuci need?

Move up exactly one pot size. A heavy cambuci 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 cambuci?

Early spring, just as new growth restarts, is the ideal window for cambuci. 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 cambuci?

For a big, heavy cambuci, 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 cambuci after repotting?

Not immediately. Wait about 4 weeks after repotting cambuci. 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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