Answer: Peegee hydrangea (Hydrangea paniculata) The common name "peegee" comes from the "p" for paniculata and "g" from 'Grandiflora', an old cultivar introduced in the 1860s. Has large white flowers that grow 8 to 10 inches long and about 5 inches wide. Or Hydrangea quercifolia 'Snow Queen' which has large, upright-growing sterile flowers 6 to 8 inches long and 5 inches wide. Sometimes called Oakleaf Hydrangea because of the leaf shape. Endless Summer is an everblooming hydrangea. All of these hydrangeas bloom on new growth of the season so it doesn't matter if they freeze down to the ground each winter. Hydrangeas do best in morning sun, afternoon shade. Mulch helps conserve moisture so mulching is a good idea around any landscape shrub.
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