SelecTree: Tree Detail
Photo Locations: University of Miami - Miami, FL, Foster Botanical Garden - Honolulu, HI and Lyon Arboretum - Honolulu, HI
Many of the twenty-eight species of Ptychosperma readily hybridize, making their identification difficult. This species is usually clustering and branched from the ground, whereas the solitaire palm (P. elegans) has a solitary trunk. This is the most commonly grown Ptychosperma in Hawai'i. It grows well in full sun, with plenty of water and well-drained, rich soil. The fruit flesh can cause skin irritation, and the apical buds of some species are eaten, like palm hearts, in their native range. Ptychosperma macarthurii has a HPWRA (Hawai'i Pacific Weed Risk Assessment) score of 1 (Evaluate).
Native to Eastern Australia.
Additional Common Names
SOLITAIRE PALM, ALEXANDER PALM, CABBAGE PALM, ELEGANT PALM
Erect Low or High Canopy.
Has Evergreen foliage.
Height: 35 - 45 feet.
Width: 10 feet.
Growth Rate: 24 Inches per Year.
Longevity Less than 50 years.
Leaves Pinnately Compound, Green, No Change, Evergreen.
Flowers Showy. White.. Has separate male and female reproductive parts on the same tree (monoecious).
Few, Red Drupe, Small to Medium (0.25 - 1.50 inches).
Bark Light Brown to Grey, Smooth.
Shading Capacity Rated as Moderate in Leaf.
Litter Issue is Leaves.
Tree Site Conditions & Constraints
Sunset Zones H1, H2.
USDA Hardiness Zones 10 - 11.
Exposure Partial Shade.
Well Drained Soil.
Loam or Sand Texture.
Neutral to Highly Alkaline Soil pH.
Salinity Tolerance is Coastal Good.
Seaside Tolerance is Good.
Health, Safety & Environmental Concerns
Irritant Health Hazard.
Cite this tree:
SelecTree. "Ptychosperma elegans Tree Record." 1995-2021. May 13, 2021.
< https://selectree.calpoly.edu/tree-detail/ptychosperma-elegans >