Ptychosperma macarthurii – Macarthur Palm

Description

Ptychosperma propinquum (syn. Ptychosperma macarthurii) – Macarthur Palm

Family: Arecaceae
Packet Size: 6 Seeds

Description

Macarthur Palm is a clustering feather palm long known in horticulture as Ptychosperma macarthurii. Kew now treats that name as a synonym of Ptychosperma propinquum, a native palm of New Guinea and northern Australia.

This tropical species forms slim, upright canes topped with arching green fronds, making a useful garden feature or informal screen in sheltered, frost-free conditions. Plants sold under the old horticultural name can occasionally be confused with similar palm species, so source identification remains important.

Key Features

• Habit: Several slender upright stems forming a clump.
• Foliage: Fine, arching feather fronds.
• Origin: The accepted species occurs from New Guinea to northern Australia.

Growing Conditions

• Light: Bright filtered light when young; more sun with shelter and adequate moisture.
• Soil: Moist, fertile, freely draining soil with organic matter.
• Climate: Tropical and warm frost-free subtropical settings.
• Care: Protect from cold winds and maintain good moisture while establishing.

Propagation from Seed

1. Sow: Use fresh, clean seed and plant shallowly in a loose, moist palm seed mix.
2. Germinate: Keep warm with steady, moderate moisture and ventilation.
3. Transplant: Pot on carefully after young seedlings develop sound roots.

Growing Note

The established trade name Ptychosperma macarthurii is retained in the listing title. Confirm the mother plant or seed-source identification before formally renaming the product, as similar cultivated palms may be mislabelled.

Germination advice: These instructions are a recommended guide. Germination results and timing may vary depending on seed freshness, storage, temperature and growing conditions. Alternative propagation methods may also be successful.