How to Fertilize hydrangea 'Polar Bear'?
Diluted panicle hydrangea feed every three weeks spring through midsummer

hydrangea 'Polar Bear' · Hydrangea paniculata 'Polar Bear'
Grow in moist but well-drained, humus rich soil, in sun or part-day shade. Mulch in spring, and provide shelter from cold, drying winds. See shrubby hydrangea cultivation for more detailed advice
Diluted panicle hydrangea feed every three weeks spring through midsummer