Rhododendron 'White Peter' (also sold as Rhododendron 'White Peter') brings a refined spring display to shaded borders and woodland edges, with pale lavender-pink buds that open to white flower trusses marked with purple spotting. You can count on glossy evergreen foliage for year-round structure, and a broad, dense habit that makes an excellent specimen or background shrub.
Plan for a mature size around 72-96 inches tall and roughly 120-168 inches wide, so give it room to develop its natural shape. It performs best with morning sun and afternoon shade, or bright dappled shade, which helps limit leaf scorch while still supporting strong bloom. In hotter climates, prioritize protection from harsh afternoon sun and drying winds.
Set your plant up in moist, well-drained, acidic soil rich in organic matter. Work in pine bark fines, leaf mold, or compost to improve texture and drainage, and keep the root ball slightly high to avoid waterlogging. Mulch 2-3 inches deep to moderate soil temperature and conserve moisture, keeping mulch a few inches back from the stems.
Water regularly during establishment and during dry periods, aiming for even moisture without soggy conditions. Feed lightly in early spring with a fertilizer labeled for acid-loving plants, then stop feeding by mid-summer so new growth can harden before winter. If deer pressure is common in your area, this cultivar is often noted as deer resistant, though no plant is completely deer-proof.
Prune right after flowering if you need to shape the shrub, because next year's buds set soon after bloom. Deadhead spent trusses if desired and remove any damaged or crossing branches. With good siting and consistent moisture, you'll enjoy a long-lived evergreen shrub that adds spring color and reliable structure to your landscape.