Repotting guide

When & how to repot Madagascar Palm (Pachypodium lamerei)

Also called Madagascar Palm, Club-foot, Pachypodium.

More about madagascar palm

About Madagascar Palm

Pachypodium lamerei · also called Madagascar Palm, Club-foot · tropical

Pachypodium lamerei is a dramatic, spiny caudiciform from arid southwestern Madagascar, with a silver-green columnar trunk covered in stout spines and a crown of strap-like leaves. Not a true palm, it belongs to Apocynaceae. It demands full sun, fast-draining soil, and warm temperatures. All parts are toxic due to cardiac glycoside-type compounds. A striking statement plant for sunny rooms.

Mature size: Up to 6 m (20 ft) outdoors in frost-free climates; typically 1–1.5 m (3–5 ft) as an indoor container plant over many years

Watch for — Root rot from overwatering: The most common cause of decline. Dark, mushy tissue at the trunk base indicates rot. Allow the medium to dry fully between waterings, particularly in autumn and winter. If rot is caught early, cut back to healthy tissue, dust with sulphur, and repot in fresh gritty mix.

How to tell madagascar palm needs repotting

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

Roots growing out of the drainage holes, or the rootball lifting the plant proud of the rim.
Soil that has shrunk away from the pot sides and no longer holds water.
The pot is unstable because the plant has grown top-heavy.
Old, compacted, broken-down mix that stays wet too long — for a succulent that is a rot risk, so refresh it even if the pot size is fine.

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 madagascar palm

Every 2–3 years, into bone-dry mix. Madagascar Palm's growth habit — upright, single-trunked columnar succulent; branching at the crown in maturity — sets the pace. Pachypodium lamerei is a dramatic, spiny caudiciform from arid southwestern Madagascar, with a silver-green columnar trunk covered in stout spines and a crown of strap-like leaves. Not a true palm, it belongs to Apocynaceae. It demands full sun, fast-draining soil, and warm temperatures. All parts are toxic due to cardiac glycoside-type compounds. A striking statement plant for sunny rooms.

What size pot to step madagascar palm up to

Use a pot only one size up — or even the same pot with fresh gritty mix if the roots have room. Madagascar Palm stores water and rots in a large pot of slow-drying soil. A tight terracotta pot that dries fast is far safer than a generous plastic one. Never up-pot a succulent by several sizes.

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 madagascar palm

Spring or summer, while madagascar palm is in active growth and warm, is best — roots recover fastest then, and the plant is not sitting in cool damp soil. Avoid repotting a succulent in winter dormancy.

Step-by-step: repotting madagascar palm

Repot dry. Do not water madagascar palm for several days first. Working with dry roots and dry mix dramatically lowers the rot risk for a succulent.
Pick a snug, fast-draining pot. Choose terracotta one size up at most, with a drainage hole. Have gritty very free-draining cactus or succulent mix ready.
Tip it out and clean the roots. Slide the plant out, crumble off the old soil, and trim any black, mushy or dead roots with clean snips.
Pot into dry mix. Set madagascar palm at its original depth in dry gritty mix, firming gently. Do not bury the stem deeper than it was.
Wait a week before watering. Leave it completely dry and out of harsh sun for about 7 days so any damaged roots callus. Only then water lightly.

Aftercare

Keep madagascar palm completely dry and out of fierce sun for about a week so any nicked roots callus before they meet moisture; watering a freshly repotted succulent is the classic way to rot it. Then resume the normal lean, dry rhythm. Do not fertilise for about 3 weeks — fresh mix already carries nutrients and feeding freshly disturbed roots scorches them.

The right soil mix for madagascar palm

Madagascar Palm wants very free-draining cactus or succulent mix. Use a commercial cactus and succulent mix or combine standard potting compost with 50% coarse grit and perlite. Fast drainage is essential; this plant rots quickly in heavy or moisture-retentive media. Clay or terracotta pots help wick excess moisture. Always use fresh mix when you repot — reusing old, broken-down soil reintroduces the compaction and poor drainage you are repotting to fix.

Repotting madagascar palm — frequently asked questions

How often should you repot madagascar palm?

Every 2–3 years, into bone-dry mix for madagascar palm. Repot madagascar palm every 2–3 years into a snug pot of very free-draining cactus or succulent mix, ideally in spring or summer. Let it sit in dry soil and do not water for about a week afterwards so any nicked roots can callus. Over-potting and watering straight away is what rots succulents.

What size pot does madagascar palm need?

When is the best time of year to repot madagascar palm?

Should you water madagascar palm after repotting?

No — not straight away. Repot madagascar palm into dry mix and wait about a week before the first watering so any damaged roots callus over. Watering a freshly repotted succulent is the single most common way to rot one.

Should you fertilise madagascar palm after repotting?

Not immediately. Wait about 3 weeks after repotting madagascar palm. Fresh mix already contains nutrients, and feeding freshly cut or disturbed roots burns them. Resume your normal feeding routine once you see new growth.