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PlantFiles: Macarthur Palm
Ptychosperma macarthurii

Family: Arecaceae (ar-ek-AY-see-ee) (Info)
Genus: Ptychosperma (tik-oh-SPER-muh) (Info)
Species: macarthurii

One vendor has this plant for sale.

5 members have or want this plant for trade.


20-30 ft. (6-9 m)
30-40 ft. (9-12 m)

10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)

USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade
Partial to Full Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Unknown - Tell us


Other details:
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
From seed; germinate in vitro in gelatin, agar or other medium

Seed Collecting:
Wear gloves to protect hands when handling seeds
Seed does not store well; sow as soon as possible

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There are a total of 16 photos.
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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive kimanjo On May 4, 2014, kimanjo from Southgate, FL wrote:

Sarasota, FL.. I planted this palm (actually, a clump of 3) in 2002 at my new home. The plant was appx 6 feet tall at time of purchase. Twelve years later and the palms are still alive, beside my pool cage (northwestern corner--yikes) and are appx 20' tall. I am ashamed to say I do nothing to take care of the palms, except water them with my automatic sprinkler system, and they are doing well. I also have a clump of Carpentaria palms purchased at the same time from the same vendor and those are doing well, also. The only problem with is that both sets of plants are exposed to wind (as they are taller than my roofline) and the fronds tend to become a bit tattered during windy periods. For the most part, though, they are nice-looking plants.

Positive Poulet On Nov 14, 2007, Poulet from Bangkok
Thailand wrote:

It's one of an easy growing plant in Thailand and it's a popular plant for Landscape architectures.

Positive palmbob On Jun 17, 2004, palmbob from Acton, CA (Zone 8b) wrote:

This is one of the two most common Ptychospermas in cultivation, from N Australia and New Guinea. It is a tall, spreading clumping species with premorse leaflets and thin, grey, barely ringed trunks. It is found throughout the tropical world being used in malls, parking lots, indoors and in many gardens. It is fast growing and the fruits are bright red making it useful as an ornamental. Here in southern California it is a marginal palm, but does succeed in zone 10a... just slow as molassas. I have seen clumps that looked great, though, along the coast.


This plant has been said to grow in the following regions:

Huntington Beach, California
Cape Coral, Florida
Fort Myers, Florida
Jensen Beach, Florida
Naples, Florida
Pompano Beach, Florida
Port Charlotte, Florida
Hana, Hawaii

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