How to Water Rhododendron 'Martha Wright'?
Keep acidic root zone evenly moist, never leaving waterlogged soil

Rhododendron 'Martha Wright' · Rhododendron 'Martha Wright'
In mild, frost-free areas, may be grown outdoors in a sheltered position, in moist but well-drained, humus rich, acidic soil. Position in partial or dappled shade, and add an annual organic mulch (ideally leaf mould). In colder areas, this cultivar is best grown under glass in ericaceous compost. See rhododendron cultivation for more detailed advice
Keep acidic root zone evenly moist, never leaving waterlogged soil