How to Fertilize Hydrangea alternifolia?
Hydrangea shrub feed every four weeks spring through early summer

Hydrangea alternifolia · Hydrangea alternifolia
Grow in any moist but well-drained soil in partial shade or grow in sun if soil remains reliably moist. Improve chalky soils with organic matter to support good growth. See shrubby hydrangea cultivation for further advice
Hydrangea shrub feed every four weeks spring through early summer