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Castle Wall® Blue Holly Ilex x meserveae

Flower Season
  • Spring
  • Summer
  • Fall
  • Winter
Mature Size
8' 4' 2.4m 1.2m
Height: 5' - 8'
Spread: 3' - 4'
Height: 1.5m - 2.4m
Spread: 91cm - 1.2m
  • Details

    60 - 96 Inches
    48 - 60 Inches
    36 - 48 Inches
    1.5m - 2.4m
    1.2m - 1.5m
    91cm - 1.2m


    Handsome columnar holly.

    Castle Wall® holly is a regal accent for your landscape! Dark glossy leaves, superior vigor and branching make it a superior choice over other varieties. Narrow habit makes it ideal for hedges, foundation plantings, or even as a dramatic specimen. Castle Wall® holly is a male variety that will pollinate Castle Spire® and Castle Keep® holly, but it does not produce fruit itself.

    Fall Interest
    Winter Interest
    Deadheading Not Necessary


    Plant Type: 
    Shrub Type: 
    Height Category: 
    Garden Height: 
    60 - 96 Inches 1.5m - 2.4m
    48 - 60 Inches 1.2m - 1.5m
    36 - 48 Inches 91cm - 1.2m
    Flower Colors: 
    Flower Shade: 
    Foliage Colors: 
    Foliage Shade: 
    Dark Green
    Container Role: 

    Plant Needs

    Light Requirement: 
    Part Sun to Sun
    Light Requirement: 

    The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

    Maintenance Category: 
    Blooms On: 
    Old Wood
    Bloom Time: 
    Early Spring
    Bloom Time: 
    Mid Spring
    Bloom Time: 
    Late Spring
    Hardiness Zones: 
    5a, 5b, 6a, 6b, 7a, 7b
    Water Category: 
    Specimen or Focal Point
    Uses Notes: 

    Broad columnar shrub that is great as a foundation, specimen or hedge plant. Good in groupings and mass plantings. Makes a good screen. Good for winter gardens.

    Maintenance Notes: 

    Castle Wall® holly is a male variety that does not get fruit but will serve to pollinate female varieties, like Castle Spire® and Pharos Gold holly. One male will pollinate up to 5 females. Plant within 50'/15.25m of each other to ensure pollination.

    Male holly like Castle Wall may be pruned after flowering if desired, but its natural columnar habit should need little trimming.

    Holly prefers acidic soils with average moisture and appreciates a good layer of mulch. If desired, apply a granular fertilizer formulated for trees and shrubs in early spring.

    Castle Wall® Ilex x meserveae 'Heckenstar' USPP 14,308
  • 1 Review

    Browse reviews from people who have grown this plant.
    • I planted a Castle Spire Holly 2-3 years ago, and a Castle Wall last year. The Spire is doing well, although no flowers or berries. The Wall died this summer, about 6 months after planting. I assume the 100 degree weather killed it although we watered regularly. We planted both in a partial light area, about 12’ apart. We have large oaks, 60’- 80’ tall that filter much of the direct light, which hasn’t affected the Spire. I want to try Wall again to pollinate the Spire. Where can I find one locally in Fort Worth and when should I plant it. The Wall I planted this year that died was from an out of state nursery in the N/E. Thank you for your help. Rick

      Rick Ringler
      , Texas
      , United States
      , 3 years ago
  • 1 Recipe

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