Castle Keep® Blue Holly is a compact, semi-dwarf female holly that delivers stunning deep green glossy foliage and a naturally rounded form that needs no shaping to look polished year-round. Chartreuse-green in spring, the leaves mature to a rich, glossy dark green that persists through winter, and when a male pollinator like Castle Rouge® or Castle Wall® is planted nearby, Castle Keep® rewards you with a brilliant display of bright red berries in fall. At 3–5 feet tall and wide, it’s perfectly sized for foundation plantings, hedges, and containers.

• Glossy, deep green evergreen foliage year-round, chartreuse in spring, rich green through winter
• Bright red berries in fall with a nearby male holly pollinator
• Naturally rounded, semi-dwarf habit, 3–5 ft. tall and wide, no shaping needed
• Excellent for foundation plantings, hedges, mass plantings, and containers
• Tolerates part shade and clay soils
• Deer resistant and virtually maintenance-free
• Hardy in Zones 5–7

Castle Keep® Blue Holly thrives in full sun to part shade with moist, well-drained, slightly acidic, fertile soil. Consistent moisture is important, avoid waterlogged conditions. A spring application of acidifying fertilizer supports the best foliage color and growth. Plant Castle Rouge® or Castle Wall® male holly within 50 feet to guarantee berry production. No regular pruning is required to maintain its attractive natural form. This versatile, polished evergreen is an exceptional choice for any four-season landscape. Add to your cart today!