Calappa Palm

The Calappa Palm (Actinorhytis calapparia) is a slender feather palm from the rainforests of New Guinea and the Pacific islands, grown for a full crown of long arching fronds above a clean ringed trunk. In a warm Australian garden it reaches about 10m tall and only 4m wide, and it gets there quickly. That narrow footprint is what sets it apart from most palms of the same height.

Why you'll love it

• Height without width. At roughly 10m tall and 4m across it clears a rooftop while taking up the ground space of a small tree.
• Fast for a rainforest palm. Given warmth, water and feed it puts on height noticeably faster than most feather palms.
• A clean trunk worth showing. The slim grey trunk is ringed with old frond scars, which reads well uplit or against a rendered wall.
• Built for heat and humidity. Tropical by origin, so a humid summer that stresses other feature plants is exactly what it wants.

Where it works best

Feature planting. One palm in a courtyard or against a two storey wall gives instant tropical scale. A group of three at staggered heights suits a wider bed.

Poolside gardens. Plant at least 2m back from the coping so the crown clears the water and the roots stay out of the shell. It handles reflected heat well.

Driveways and avenues. The narrow crown lets you line a drive with palms without losing turning room. Allow 4m between trunks so the fronds are not forced upright.

Growing Calappa Palm in Australia

Position and climate. This is a tropical and subtropical palm, and it is frost tender, so it is not an option for cool temperate, Mediterranean or hard frosting inland gardens. Young palms prefer filtered light for their first year or two, then take full sun once the trunk is up.

Soil. Deep, rich and free draining, with plenty of compost worked through the bed. It will not thrive in shallow or compacted ground, and it dislikes standing water.

Water and feed. Water deeply two or three times a week through the first two summers, and keep it up in dry spells after that. A controlled release palm fertiliser three times through the warm months keeps the fronds a deep green and prevents yellowing.

Pruning. Remove only fully brown fronds, cut close to the trunk. Trimming green fronds to tidy the crown weakens the palm and slows growth.

What to expect when it arrives

This palm is supplied in 60L, an advanced size carrying a formed crown and real height on day one rather than a juvenile you grow on. It is heavy, so plan for two people or a trolley and have the hole prepared before it lands.

Some frond tip burn or a scuffed leaflet after transit is normal, not a fault. Expect a settled palm within a season and steady new fronds through each warm period. Advanced and large stock is freighted at cost, delivered Australia wide, and every plant carries our 30 day healthy plant guarantee.

Plant care guides and related reading

• An overview of palm tree varieties for Australian gardens
• Browse the full palm tree range
• Plants suited to poolside gardens
• Palms, ferns and tropical foliage

Common questions

Will it grow in Sydney, Melbourne or Perth?

Not in the open ground. It is frost tender and suited to tropical and subtropical gardens, so anywhere with cold winters it would need a heated glasshouse rather than a garden bed.

How close to a pool can I plant it?

Around 2m back from the coping is sensible. That keeps the root zone clear of the pool shell while the crown still leans out over the water.

Does it need shade when young?

Filtered light suits it for the first year or two, which mirrors how it grows under a rainforest canopy. Once the trunk is established it takes full sun without burning.

Why are the older fronds turning yellow?

Usually a nutrient shortage rather than watering. A controlled release palm fertiliser applied over the whole root zone corrects it within a season.