Blue Billow Mountain Hydrangea (Hydrangea macrophylla var. serrata 'Blue Billow') Blue Billow Mountain Hydrangea (Hydrangea macrophylla var. serrata 'Blue Billow') is a deciduous shrub known for its large, rounded lacecap flowers featuring vibrant blue petals. Blooming from early to mid-summer, this cultivar adds refined color and texture to gardens and landscapes with its striking floral display. Distinctive Features 'Blue Billow' produces abundant lacecap flower clusters with rich blue central florets surrounded by white sterile florets, creating an elegant and eye-catching contrast. The dark green foliage complements the blooms and enhances the shrub's overall ornamental appeal. Growing Conditions Sun Exposure: Partial shade to full sun; prefers morning sun and afternoon shade for best flower color Soil: Moist, well-drained, acidic soils rich in organic matter Water: Moderate; consistent moisture encourages healthy growth and flowering USDA Hardiness Zones: 5 to 8 Ideal Uses Specimen Planting: Adds a charming focal point with delicate blooms Mixed Borders: Provides subtle color and texture to shaded garden areas Container Gardens: Suitable for patios and small spaces Woodland Gardens: Thrives in naturalistic, shaded environments Cut Flowers: Ideal for fresh floral arrangements Low Maintenance Care Watering: Maintain consistent moisture, especially during dry periods Pruning: Prune after flowering to maintain shape and encourage new growth Fertilizing: Apply acid-loving fertilizer in early spring Mulching: Mulch to conserve moisture and regulate soil temperature Protection: Plant in sheltered locations to reduce wind damage Why Choose Blue Billow Mountain Hydrangea? Large Lacecap Flowers: Vibrant blue central florets with white sterile florets Compact Growth Habit: Suitable for small gardens and containers Early Bloom Time: Adds color early in the summer season Shade Tolerant: Performs well in partial shade Low Maintenance: Requires minimal pruning and care Hydrangea macrophylla var. serrata 'Blue Billow' is a refined shrub that enhances gardens with its elegant blooms and compact form.