Description

HYDRANGEA m. ‘Horstol’ PPAF. 3-4′ tall with equal spread, full morning sun-part afternoon shade, late spring-late summer bloom. Bright, raspberry pink mophead flowers that sit on bright green foliage. Flowers will turn shades of blue in acidic soils. Add lime to turn blooms pink. Deer resistant. Blooms on old wood. Zones 6-9. Potted in 1 quart pot. Hydrangea macrophylla is a big leaf hydrangea. The big leaf hydrangeas blooms are produced on old wood therefore should be pruned in summer after plants finish blooming and strong new shoots have developed from the base. Depending on your soil Ph, your blooms will turn either pink (alkline) or blue (acidic). To change blooms to blue add aluminum sulfate or add lime to change blooms to pink. This should be done late fall or early Spring. Dead head spent flowers to promote more blooms. Make sure to prune out weak or damaged stems immediately.