Photo by Melody

PlantFiles: Blue Holly, Meserve Holly, Meserve Hybrid Holly
Ilex x meserveae 'Castle Wall'

Family: Aquifoliaceae (a-kwee-foh-lee-AY-see-ee) (Info)
Genus: Ilex (EYE-leks) (Info)
Species: x meserveae (MESS-erv-ay) (Info)
Cultivar: Castle Wall
Additional cultivar information: (PP14308; Castle series, aka Heckenstar)
Hybridized by Hachmann; Year of Registration or Introduction: 2002

3 vendors have this plant for sale.


12-15 ft. (3.6-4.7 m)

4-6 ft. (1.2-1.8 m)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
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

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Spring

Grown for foliage

Other details:
Provides winter interest

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

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Gracye On Jun 25, 2012, Gracye from Warrenton, VA wrote:

Conditions: Hot Virginia sun, facing South-West (mostly South), Foundation, CInderblock painted bright white, to go in corners where brick porch joins the cinderblock, and edge of house. Could not exceed 20' tall, or about 4' wide. Amended soil but clay right underneath - not very much soil (I added more the next year).
Bought 2 Castle Walls, 2 Castle Spires. Put the ladies either side of porch, the men at the ends. Globe spruce in between.
The men did not fare well. I protected them with burlap thru winter, but they just did not thrive. One of the ladies was the same. After much investigation, and major desire for Hollies, I bought one more lady this Spring.
Husband removed the two men and the other lady. Now, they are actually thriving, and I have a new lady in place. Seems that the addition of shrubs in front of them has cooled their roots (and more mulch). The older lady has lush, shiny new growth, the younger one show promise. They must be hard to establish, but they are keepers! Big jump in price from one year to the next, much more expensive, and hard to find. Going for symmetry is a real challenge!

Positive dennyboy34 On Apr 7, 2011, dennyboy34 from Yonkers, NY wrote:

Planted a 50' hedge row of Castle Spire and a smaller 15' hedge row of Castle Wall (for pollination purposes) in 2010. Plants to start were quart size (about 8" to 12" in height). All survived a tough NY winter with little damage; they were buried under several feet of snow for weeks and only had some broken branches here and there after thawing. Note, the leaf form of these two cultivars is slightly, but noticably, different. They should not be used in the same hedge row. The habit of Castle Wall (male) is a little different than Castle Spire (female). If using them in the same planting, the differences will stand out. Try planting Castle Wall nearby but in a different planting than the Castle Spire. Fertilized with holly food in the fall and spring. These cultivars, like most hollies, are slow growers.


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

Yonkers, New York
Warrenton, Virginia

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