Endless Summer® Twist-n-Shout® Hydrangea

Endless Summer® Twist-n-Shout® is a reblooming lacecap bigleaf hydrangea with sturdy red stems and flower clusters that can be deep pink or periwinkle blue as soil pH changes. The [Endless Summer cultivar profile](https://endlesssummerhydrangeas.com/product/twist-n-shout-reblooming-hydrangea/) identifies the selection as Hydrangea macrophylla ‘PIIHM-I’ (PP 20,176) and lists a 3–5-foot height, 3–4-foot width, morning sun with afternoon shade, and Zones 4–9. ## Flowers and color The lacecap flowers repeat through the growing season, and the blue-to-pink color depends on soil pH rather than cultivar identity. The [NC State Plant Toolbox profile for bigleaf hydrangea](https://plants.ces.ncsu.edu/plants/hydrangea-macrophylla/) describes reblooming cultivars as flowering again later in summer on new growth and explains how soil acidity shifts flowers between blue and pink. The breeder also notes vivid red, sturdy stems against the dark-green foliage. ## Planting and display Give the upright, rounded shrub room in a mixed border or mass planting, or use the stems as cut flowers. Choose a spot with morning light and afternoon shade; bigleaf hydrangeas perform well in part shade and should be protected from hot afternoon sun. Good drainage is important, though established plants tolerate occasional wet soil. ## Maintenance Keep the root zone evenly moist and water more during dry spells; the breeder rates water needs medium to high. If pruning is needed, follow the cultivar’s care advice to prune in summer after flowering. NC State recommends leaving cut-back dead stems standing until they naturally break down, since native bees may nest in hollow stems.