Endless Summer Twist-n-Shout Hydrangea (Hydrangea macrophylla 'PIIHM-I') — A vigorous reblooming lacecap hydrangea with pink or periwinkle blue flowers and deep red stems, providing multi-season interest from summer through fall.

Plant Details

• Botanical Name: Hydrangea macrophylla 'PIIHM-I' PP20176
• Mature Size: 3–5 ft tall × 3–5 ft wide
• Growth Rate: Moderate to fast
• Bloom Color: Pink or periwinkle blue (summer through fall)
• Foliage: Deciduous — dark green with red stems

Growing Conditions

• Sunlight: Part shade to filtered sun
• Water Needs: Moderate to regular
• Soil: Rich, well-drained; pH determines color
• Hardiness Zones: USDA 4–9

Why Choose Twist-n-Shout Hydrangea?

• Decorative red stems add winter interest
• Lacecap flowers attract pollinators
• Blooms on old and new wood — reliable rebloomer
• Endless Summer® Collection

Care Tips

Plant in morning sun/afternoon shade. Keep soil evenly moist. The striking red stems provide winter interest — delay pruning until spring. Adjust soil pH with aluminum sulfate (blue) or lime (pink).