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Castle Rouge® Blue Holly Ilex x meserveae

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

    60 - 96 Inches
    48 - 60 Inches
    48 - 60 Inches
    1.5m - 2.4m
    1.2m - 1.5m
    1.2m - 1.5m

    Features

    Redefining blue holly, Castle Rouge® blue holly stuns with a shock of winter color. Its base color is a glossy dark green. New growth tinges the green with a red-burgundy glow. It adopts a dark burgundy winter coat, an elegant note in any winter. This male plant pollinates the female members of the Castle series and beyond, but with handsome foliage, it doesn’t need to be stuffed into an out of the way spot like most other male pollinating plants. Use it in a mixed hedge or as an element in a foundation planting.

    Top reasons to grow Castle Rouge holly? 

    • A blue holly male pollinator with pizazz
    • Pretty winter coloring 
    • Year-round interest
    Fall Interest
    Winter Interest
    Attracts: 
    Bees
    Butterflies
    Hummingbirds

    Characteristics

    Plant Type: 
    Shrub
    Shrub Type: 
    Evergreen
    Height Category: 
    Tall
    Garden Height: 
    60 - 96 Inches 1.5m - 2.4m
    Spacing: 
    48 - 60 Inches 1.2m - 1.5m
    Spread: 
    48 - 60 Inches 1.2m - 1.5m
    Flower Colors: 
    White
    Flower Shade: 
    White
    Foliage Colors: 
    Green
    Foliage Shade: 
    Dark green
    Habit: 
    Upright
    Container Role: 
    Thriller

    Plant Needs

    Light Requirement: 
    Part Sun to Sun
    Light Requirement: 
    Sun

    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: 
    Easy
    Blooms On: 
    Old Wood
    Bloom Time: 
    Spring
    Hardiness Zones: 
    5a, 5b, 6a, 6b, 7a, 7b
    Water Category: 
    Average
    Soil Fertility Requirement: 
    Fertile Soil
    Uses: 
    Container
    Uses: 
    Landscape
    Uses: 
    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 Rouge blue 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 Rouge may be pruned after flowering if desired, but its natural 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 Rouge® Ilex x meserveae 'HACH1' USPPAF 25,475
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