What Are the Moisture Requirements for hydrangea 'Ruby Slippers'?
Moist but well drained

hydrangea 'Ruby Slippers' · Hydrangea quercifolia 'Ruby Slippers'
Grow in moist but well-drained soil in partial shade or sun if the soil remains reliably moist. See shrubby hydrangea cultivation for more detailed advice
Moist but well drained