Monrovia® Castle Wall Blue Holly is a vigorous evergreen shrub with an upright columnar habit and glossy rich blue-green foliage on dark stems. Best planted in moist, slightly acidic well-drained soils. Hollies are dioecious and need both male and female plants to produce fruit. Castle Wall is a male cultivar best used to pollinate 'Castle Spire' and 'Castle Keep'.
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Type:
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Shrub
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Origins:
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I. aquifolium x I. rugosa Hybrid
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Height:
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5' - 8'
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Spread:
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3’ - 4'
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Spacing:
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3.5’
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USDA Hardiness Zone:
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5 - 7
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Culture:
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Full Sun, Part Sun
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Bloom Color:
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White
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Season of Interest:
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Year-Round
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MAINTENANCE NEEDS: Low Maintenance. Water regularly. Well-drained soils essential. Potential issues include mites, scale, leaf spot, rot, and mildew. Susceptible to leaf scorch or drop if not protected from afternoon sun in hotter climates.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Wildlife Gardens, Hedges, Foundation Plantings, and Containers.
COMPANION PLANTS: Magnolia, Rhododendron, Hydrangea
IMAGE: Photos by Proven Winners, Castle Wall® Blue Holly
*As plants have ranges in appearance they may not appear as the images shown
