How to Fertilize rhododendron 'Viscy'?
Ericaceous fertilizer monthly from spring through late summer

rhododendron 'Viscy' · Rhododendron 'Viscy'
Grow in moist but well-drained, leafy, humus-rich, acid soil in part shade with shelter; see rhododendron cultivation
Ericaceous fertilizer monthly from spring through late summer