Hydrangea, Let's Dance® Rhythmic Blue® Macrophylla HydrangeaRhythmic Blue Hydrangea is a compact reblooming deciduous shrub with a rounded habit and dark green leaves. The mophead flower clusters have an extended bloom from midsummer into fall with a rich color that depends on the soil PH acidic soils produce blue while alkaline soils produce pink. The flowers attract pollinators. Best bloom in partial sun and rich, moist well drained soils. The Lets Dance series has an early rebloom, improved hardiness, and