Let's Dance 'Blue Jangles' is a reblooming hydrangea with a tighter growth shape than seen in previous rebloomers. Large rounded flowers are vivid blue in acidic soils, and bright pink in alkaline. Shrub grows 2-3 ft tall and broad in full to part sun. For the most blooms over the longest period, do not prune except to clean out any dead wood after spring growth has appeared. Hardy to zones 5-9.