Ilex Species, Japanese Holly, Boxleaf, Box-leaved Holly

Ilexcrenata

Family
Aquifoliaceae (a-kwee-foh-lee-AY-see-ee)
Genus
Ilex (EYE-leks)
Species
crenata (kre-NAY-tuh)
Synonym
Ilex euryifolia
Ilex helleri
Sun Exposure
Full Sun
Foliage
Grown for foliage
Evergreen
Provides Winter Interest
Textured
Height
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
Spacing
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)
Hardiness
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)
Bloom Color
White/Near White
Inconspicuous/none
Bloom Time
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
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
Seed Collecting
Regional

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

Riverdale, Maryland

West Chester, Pennsylvania

Kirkland, Washington

Seattle, Washington

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Gardener's Notes:

0
positive
2
neutrals
1
negative
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C
ROSLINDALE, MA | July 2015 | neutral

This species appears on no state's invasive species list. According to BONAP, it is not widely naturalized in N. America: ...Read More

R
Downingtown, PA | July 2015 | neutral

The straight species is a large, wide, spreading evergreen shrub that I see occasionally in southeast PA.

A
Seattle, WA | May 2009 | negative

invasive exotic which crowds out natives in our woods and should not be planted.

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