SelecTree: Tree Detail

DAHOON HOLLY
Ilex cassine

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Photo Locations: Honolulu, HI, LSU Hilltop Arboretum - Baton Rouge, LA and Sacramento State University - Sacramento, CA

General Notes

This small tree or large shrub is trainable as a standard. A drink made from the leaves, which contains caffeine, is used as a stimulant. Ilex cassine has a HPWRA (Hawai'i Pacific Weed Risk Assessment) score of 9 (High Risk).

 

Trees may be referred to as male or female.

Family: Aquifoliaceae

Additional Common Names

DAHOON HOLLY, YAUPON HOLLY, CASSENA

Tree Characteristics

Conical or Rounded Shape.

Has Evergreen foliage.

Height: 20 - 30 feet.

Width: 8 - 12 feet.

Growth Rate: 12 to 36 Inches per Year.

Leaves Elliptic, Green, No Change, Evergreen.

Flowers Inconspicuous. White. Flowers in Spring. Has either male or female reproductive parts (dioecious). Trees may be sold as male or female.

Persistent, Red or Yellow Drupe, Small (0.25 - 0.50 inches), fruiting in Fall or Winter Wildlife use it.

Bark Gray, Rough or Smooth.

Shading Capacity Rated as Low to Moderately Low in Leaf.

Tree Site Conditions & Constraints

USDA Hardiness Zones 7 - 11.

Exposure Full Sun to Partial Shade.

Wet but Well Drained Soil.

Clay, Loam or Sand Texture.

Acidic Soil pH.

Pests & Disease Information

Resistant to Verticillium. Susceptible to Twig Galls, Armillaria.

Health, Safety & Environmental Concerns

Root Damage Potential Rated as Low.

Biogenic Emissions considered Low.

Attracts Birds and Mammals.

Wildlife use Fruit.

Special Uses & Values

Specimen, Container, Screen, Buffer Strip or Street Tree.

Bonsai or Hedged.

Cite this tree:
SelecTree. "Ilex cassine Tree Record." 1995-2020. Aug 14, 2020.
< https://selectree.calpoly.edu/tree-detail/ilex-cassine >

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.