How to Fertilize Rhododendron 'Tromba'?
Ericaceous diluted liquid feed monthly all spring and summer growth
Rhododendron 'Tromba' · Rhododendron 'Tromba'
Grow in moist but well-drained, humus rich, acidic soil, in partial or dappled shade. Choose a site away from frost pockets and sheltered from strong winds, and do not allow plants to dry out. Mulch annually, ideally with leaf mould. See rhododendron cultivation for more detailed advice
Ericaceous diluted liquid feed monthly all spring and summer growth