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CASTLE WALL®

Holly - Blue

Ilex x meserveae

'Heckenstar'

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Columnar Castle Wall blue holly in landscape Compact and columnar Castle Wall blue holly in garden Close up of glossy evergreen Castle Wall blue holly foliage
  • Evergreen
  • Award winner
  • Hardy
Description

The Castle™ series brings compact, pyramidal forms to the world of blue holly. Their dark glossy leaves, superior vigor and branching make them an improvement over other older varieties. Narrow form makes them great for hedges, foundation plantings, or even as a dramatic specimen. The lustrous green foliage provides season long interest. Though it is handsome enough to be used on its own, Castle Wall® is a male pollinator for Castle Spire®  and Castle Keep® hollies.

Awards
Bronze Medal Royal Boskoop Horticulture Society
USDA Zone
5 - 7 (-20°F/-28.9°C)
Exposure
Full sun, Part sun
Height
5 - 8'
Width
3 - 5'
Finish Time
1 season
Type
Evergreen
Bloom Time
Spring
Flower Color
White
Foliage Color
Green
Liner Sizes
2 1/4", 4", Quick Turn

Soil

Prefers moist, acidic soils. Shallow root system benefits from mulch.

Pruning

Blooms on old wood; however, it's best to avoid pruning female hollies as pruning after bloom removes any developing fruit.

Uses

Hedges; screens; specimen; landscaping.

Growing Tips

Plant a male pollinator within 50' to ensure pollination; one male will pollinate up to 7 females. To minimize winter damage to the evergreen foliage, provide late-season irrigation if necessary and site so that plant is protected from harsh winds and sun.

  • Benchcard: Castle Wall® Ilex Benchcard
  • Tag: Castle Wall® Ilex Tag
  • Grower Sheet: Castle Wall® Ilex Grower Sheet
  • Spec Sheet: Castle Wall® Ilex Spec Sheet

    • Features: Evergreen, Winter interest, Attracts pollinators, Clay soil

    Filters: Botanical genus: Ilex, Common name: Holly - Blue, USDA Zone 5, USDA Zone 6, USDA Zone 7, Exposure: Full sun, Exposure: Part sun, Bloom time: Spring, White flowers, Green foliage

    Features: Evergreen, Winter interest, Attracts pollinators, Clay soil

    Filters: Botanical genus: Ilex, Common name: Holly - Blue, USDA Zone 5, USDA Zone 6, USDA Zone 7, Exposure: Full sun, Exposure: Part sun, Bloom time: Spring, White flowers, Green foliage