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American Holly
Scientific Name: Ilex opaca Ait.
Synonym:
Family: Aquifoliaceae
American Holly (Ilex  opaca)
Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 486.
Recommended Temperature Zone:
sunset: 3-23,26,28,31-35,39
USDA: 4-9

Heat Tolerance: Questionable in the low deserts

Sun Exposure: Full sun to part shade

Origin: Eastern and southern USA, southeastern Canada, northeastern Mexico

Growth Habits: Evergreen tree, growing slowly up to 50 feet tall (16 m), 15 to 30 feet spread (4-9 m); simple leaves shiny and dark green above, 2 to 4 inches long (5-10 cm), with spiny toothed margins

Watering Needs: Regular water

Propagation: Hardwood cuttings in late summer, seeds are quite hard to be brought out of dormancy.


Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species.

Blooming Habits:
Dioecious, small, greenish white, inconspicuous flowers, in spring. The female flowers are scented. The fruits are produced only on the female plants if there is a male plant nearby. Bright red, orange, or occasionally yellow drupes, 0.3 inch in diameter (0.7 cm), containing 4 seeds, ripening in fall and persisting into the following spring.

Fruiting Habits:
Red berries.


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