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PlantFiles: Japanese Holly, Boxleaf Holly, Box-leaved Holly
Ilex crenata 'Convexa'

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Family: Aquifoliaceae (a-kwee-foh-lee-AY-see-ee) (Info)
Genus: Ilex (EYE-leks) (Info)
Species: crenata (kre-NAY-tuh) (Info)
Cultivar: Convexa

2 vendors have this plant for sale.

Category:
Shrubs

Height:
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)

Spacing:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Pale Green
White/Near White

Bloom Time:
Late Spring/Early Summer

Foliage:
Grown for foliage
Evergreen
Shiny/Glossy-Textured

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From softwood cuttings

Seed Collecting:
Unknown - Tell us

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to view:

By claypa
Thumbnail #1 of Ilex crenata by claypa

By claypa
Thumbnail #2 of Ilex crenata by claypa

By claypa
Thumbnail #3 of Ilex crenata by claypa

By growin
Thumbnail #4 of Ilex crenata by growin

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive claypa On Oct 25, 2006, claypa from West Pottsgrove, PA (Zone 6b) wrote:

A very dense, hardy shrub. Glossy green foliage, and a few, small, almost black berries about 1/4". The leaves are convex on top and concave underneath (cup-like), with a few tiny teeth towards the tip of the leaf. Commonly sheared, it will withstand major pruning. Once it's established it has a great deal of drought tolerance.

Reminiscent of boxwood, but faster growing. Individual branches can grow maybe eight inches in a year. It was over-planted by developers in some areas. Definitely attracts bees, and birds like the cover it provides. The dark evergreen foliage is nice for holiday decorating in winter. From Japan, this variety was introduced to America by the Arnold Arboretum in 1919.

Regional...

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

Apex, North Carolina
Clyde, North Carolina
Morrisville, Pennsylvania
Pottstown, Pennsylvania



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