photo of Ilex opaca

Ilex opaca

American Holly

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American Holly is a wildlife-friendly evergreen tree with dark green, spine-tipped leaves and light gray bark. Its tiny, greenish-white flowers...

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Description:

American Holly is a wildlife-friendly evergreen tree with dark green, spine-tipped leaves and light gray bark. Its tiny, greenish-white flowers blooming May-June provide a nectar source for honeybees and butterflies. This tree is also a host plant for butterfly and moth larvae (caterpillars), including Henry’s Elfin (Callophrys henrici). Since it is dioecious (separate male and female plants), a male must be in the area to pollinate females for fruit production. The female trees bear bright red, berry-like fruits, which persist through the winter and provide winter food for birds. The red fruits and evergreen leaves add winter color to the yard, and cuttings make excellent holiday decorations. Use American Holly as a specimen tree or plant in groups in woodland gardens or hedges.

Plant Details:

Plant Type: Tree

New Jersey Native: Yes

Bloom Times: Late Spring to Early Summer

Bloom Colors: Green, White

Deer Resistance: High

Attracts Pollinators and Wildlife: Bees and Other Pollinators, Butterflies, Birds

Salt Tolerance: Medium

Hardiness Zone: 6a, 6b, 7a, 7b

Physiographic Region: All Regions in NJ

Grows in Special Ecoregions: Barrier Island/Coastal, Pinelands

Soil Characteristics

Soil Type: Loam, Organic, Sandy

Soil Moisture: Dry, Moist

Soil pH: Acidic, Slightly Acidic, Neutral

Light Needs of Plant

Optimal Light: Full Sun

Light Range: Full Sun, Partial Shade, Shade

Water Needs of Plant

Soil Moisture: Dry, Moist

Drought Tolerance: Medium

Size and Growth Rate

Height: 40 - 50 ft

Spread: 18 - 40 ft

Growth Rate: Slow