What Are the Moisture Requirements for Hydrangea paniculata 'Ammarin'?
Moist but well drained

Hydrangea paniculata 'Ammarin' · Hydrangea paniculata 'Ammarin'
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
Moist but well drained