|Carolina rhododendrons have a compact, round form, growing 4 to 5 feet tall and 3 to 4 wide. Leaves are bluish-green on top, brownish below, fragrant when crushed, usually turning purplish in cold weather. The variety album bears showy, 3 inches wide trusses of 4 to 10, white flowers in May. Rhododendrons love well-drained, acid soil and should be planted high, preferably on raised beds. Partial shade is preferable too, though many plants grow quite well in full sun in cooler, more forgiving climates. In general, the evergreen rhododendron tends to do better in cooler areas of zone 7 and lower, thriving in the Appalachian Mountains and the Pacific Northwest.