Ilex, American Holly 'Clarendon Spreading'

Ilexopaca

Family
Aquifoliaceae (a-kwee-foh-lee-AY-see-ee)
Genus
Ilex (EYE-leks)
Species
opaca (oh-PAK-uh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Evergreen
Provides Winter Interest
Textured
Height
6-8 ft. (1.8-2.4 m)
Spacing
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
From hardwood cuttings
By grafting
Seed Collecting
Remove fleshy coating on seeds before storing
Properly cleaned, seed can be successfully stored
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Clermont, Kentucky

Georgetown, Kentucky

Louisville, Kentucky

Franklin, Michigan

Featured Videos

Gardener's Notes:

2
positives
0
neutral
0
negative
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J
Franklin, MI | August 2019 | positive

A few plants of Clarendon spreading holly were growing under the shade of a mature Japanese maple when we bought the house in '76, and th...Read More

V
Scott County, KY (Zone 5b) | January 2007 | positive

'Clarendon Spreading' is a low spreading form of American holly selected at Clarendon Gardens in Pinehurst NC. It is a female plant whic...Read More

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