Castle Wall® Blue Holly (Ilex x meserveae)

Castle Wall® Blue Holly (Ilex x meserveae)
A size chart showing 2 different options for Shrub Plants: Quart (5-8" plant height, 4.5" pot width, 5" pot height); 1 Gallon (6-24" plant height, 6.5" pot width, 7.13" pot height).
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
A size chart showing 2 different options for Shrub Plants: Quart (5-8" plant height, 4.5" pot width, 5" pot height); 1 Gallon (6-24" plant height, 6.5" pot width, 7.13" pot height).
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)
Castle Wall® Blue Holly (Ilex x meserveae)

Castle Wall® Blue Holly (Ilex x meserveae)

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All Preorders ship during selected Ship Week. All Ships Now Annuals and Indoor Plants will ship same day on Mondays and Tuesdays by 12pm EST. All Ships Now Perennials, Shrubs, and Hardgoods will ship next day Monday-Friday by 2pm ET.
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Just as its name suggests, Castle Wall® Blue Holly stands tall and unwavering. With a dense, upright form and dark, glossy evergreen foliage, it brings bold structure to the landscape in every season. Whether used as a commanding specimen, planted in a group for screening, or closely spaced to create a nearly impenetrable hedge, Castle Wall® offers strength and visual impact.

Its tightly spaced branches are packed with foliage, contributing not only to its formidable appearance but also to excellent winter hardiness. As a male blue holly, Castle Wall® produces spring flowers that serve as an essential pollen source for nearby female varieties like Castle Spire® or Castle Keep®, helping to ensure a vibrant berry display.

Dependable, adaptable, and architecturally strong, Castle Wall® is a foundational plant that supports both design and ecological function in any landscape.

  • 5-8 feet tall and 3-5 feet wide at maturity
  • Hardy in zones 5-7, be sure to check your USDA zone to ensure success
  • Plant in part to full sun (4+ hours daily)
  • Space plants 3-5 feet apart for best results
  • Produces white flowers in the spring 
  • Maintains soft to the touch, glossy deep green foliage year-round
  • Attracts bees
  • Blooms on old wood
  • Great for borders, hedges, screening, landscapes or mass planting 
  • Fall and winter interest

Care: Fertilize with Proven Winners Continuous Release Plant Food in spring and mid summer. It’s best to avoid pruning, as flowers grow from old wood. If you need to do a few maintenance cuts, you can do so in the late winter or early spring.

Pollination: This is a male variety. It will not produce berries but will pollinate a female for berries. Plant one male for every seven females, and be sure to position them within 50 feet of each other so they can get good cross-pollination.

Shipping Info:

  • Enjoy free shipping on orders over $175
  • Size at shipping varies by season, plant, and trimming schedules
    • Quart shrubs are 5-8" tall at shipment
    • 1-Gallon shrubs are 6-24" tall at shipment
  • Shrubs ship dormant November through April

Read our guide to get started with planning a garden

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