How to Fertilize Rhododendron annae?
Single diluted rhododendron feed applied once early spring budding

Rhododendron annae · Rhododendron annae
Grow in moist but well-drained, humus rich, acidic soil, in partial or dappled shade. Choose a site away from frost pockets; although hardy, this species may be more susceptible than others to flower damage from late frosts. Shelter from strong winds, and do not allow plants to dry out. Mulch annually, ideally with leaf mould. See rhododendron cultivation for more detailed advice
Single diluted rhododendron feed applied once early spring budding