Castle Rouge® Blue Holly

Castle Rouge® Blue Holly is the boldest male holly you’ll ever grow, and one you’ll actually want to feature front and center in your landscape. Its glossy dark green leaves flush with a stunning burgundy-red glow as new growth emerges, and in winter the entire shrub takes on a dramatic dark burgundy coat that provides vivid cold-season interest. Growing 5–8 feet tall, this upright, columnar male holly pollinates all nearby female hollies within 50 feet, including the full Castle Series, encouraging abundant red berry production.

• Dramatic burgundy-red new growth turns dark green, then returns burgundy in winter
• Male pollinator, one plant pollinates up to 7 female holly plants within 50 feet
• Upright, columnar habit, 5–8 ft. tall, 4–5 ft. wide, strong structural presence
• Glossy, dark green summer foliage with exceptional ornamental quality
• Outstanding as a hedge, screen, foundation plant, or specimen
• Tolerates clay soils and part shade
• Hardy in Zones 5–8

Castle Rouge® Blue Holly thrives in full sun to part shade with average, moist, well-drained, slightly acidic soil. It tolerates clay soils and is adaptable to urban conditions. In hot climates, afternoon shade helps preserve foliage quality; in windy winter climates, a sheltered site is beneficial. Water regularly until established. No heavy pruning is required, the natural columnar form is attractive on its own. Plant near Castle Keep® or other female hollies for spectacular berry displays. Order this showstopping male holly today!