SelecTree: Tree Detail

ALEXANDRA PALM
Archontophoenix alexandrae

Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae Archontophoenix alexandrae

Photo Locations: Huntington Botanical Gardens - San Marino, CA, Tropical Gardens of Maui - HI and Lyon Arboretum - Honolulu, HI

General Notes

Attractive. Hard to transplant.

Native to Queensland, Australia.

Family: Arecaceae

Additional Common Names

ALEXANDRA PALM, ALEXANDER PALM, KING PALM, STEP PALM

Tree Characteristics

Erect and requires ample growing space.

Feather Palm Shape.

Has Evergreen foliage.

Height: 50 - 80 feet.

Width: 10 - 15 feet.

Growth Rate: 24 Inches per Year.

Longevity 50 to 150 years.

Leaves Pinnately Compound Odd, Medium Green, No Change, Evergreen.

Flowers Inconspicuous. Pink or Purple.. Has separate male and female flowers on the same tree (monoecious).

Red Drupe, Small (0.25 - 0.50 inches).

Bark Dark Gray or Light Gray, Smooth.

Shading Capacity Rated as Moderate in Leaf.

Litter Issue is Wet Fruit and Leaves.

Tree Site Conditions & Constraints

Sunset Zones 21 - 24.

USDA Hardiness Zones 10 - 11.

Exposure Full Sun to Partial Shade.

Moist Soil.

Loam or Sand Texture.

Highly Acidic to Highly Alkaline Soil pH.

Seaside Tolerance is Good in South Coast.

Pests & Disease Information

Resistant to Texas Root Rot.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium.

Root Damage Potential Rated as Moderate.

None Known Health Hazard.

Attracts Birds.

Cite this tree:
SelecTree. "Archontophoenix alexandrae Tree Record." 1995-2018. Feb 24, 2018.
< http://selectree.calpoly.edu/tree-detail/archontophoenix-alexandrae >

This tree is not part of the SelecTree Nursery Connection. If you would like to see this tree listed, or know of a nursery that sells it, please contact us at ufei@calpoly.edu.