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PlantFiles: American Holly
Ilex opaca 'Clarissa'

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Family: Aquifoliaceae (a-kwee-foh-lee-AY-see-ee) (Info)
Genus: Ilex (EYE-leks) (Info)
Species: opaca (oh-PAK-uh) (Info)
Cultivar: Clarissa

One member has or wants this plant for trade.

Category:
Trees

Height:
30-40 ft. (9-12 m)
over 40 ft. (12 m)

Spacing:
15-20 ft. (4.7-6 m)
20-30 ft. (6-9 m)
30-40 ft. (9-12 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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
White/Near White
Inconspicuous/none

Bloom Time:
Late Spring/Early Summer

Foliage:
Grown for foliage
Evergreen

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Provides winter interest

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

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

Click thumbnail
to view:

By ViburnumValley
Thumbnail #1 of Ilex opaca by ViburnumValley

By ViburnumValley
Thumbnail #2 of Ilex opaca by ViburnumValley

By ViburnumValley
Thumbnail #3 of Ilex opaca by ViburnumValley

By ViburnumValley
Thumbnail #4 of Ilex opaca by ViburnumValley

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive ViburnumValley On Jan 28, 2007, ViburnumValley from Scott County, KY (Zone 5b) wrote:

'Clarissa' is a extremely hardy female selection of American holly. It bears crops of deep reddish orange fruit.

This plant was named and introduced by Orlando S. Pride of Butler PA from seed collected in Buckhannon WV. Orlando Pride selected and named a number of very cold hardy plants which became known as the Pride series of American hollies. Gardeners from more frigid climes would do well to select from this series of plants to raise their chances of success with this classy broadleaf evergreen.

Regional...

This plant has been said to grow in the following regions:

Wilmington, Delaware
Terre Haute, Indiana
Clermont, Kentucky
Georgetown, Kentucky
Louisville, Kentucky



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