Rhododendron albiflorum, commonly known as the Cascade Azalea, is a deciduous shrub native to the moist subalpine and montane forests in the Pacific Northwest, including British Columbia, northern Oregon, Alberta, and Montana. It typically grows up to 8 feet tall and is characterized by its thin, elliptical, medium-green leaves. The Cascade Azalea blooms in early to mid-summer, producing clusters of white, bell-shaped flowers, with 1–5 flowers per axil, which are modestly showy and attract pollinators. The flowers are notable for their delicate fragrance and contrast against the green foliage.

This species is valued for its naturalistic appeal in woodland gardens and for its ability to thrive in cooler, moist climates. It is often used in border plantings or as part of a shrubbery mix in areas that replicate its native habitat. Cascade Azalea prefers partial shade to full sun, acidic, well-drained soils, and consistent moisture. It is relatively low maintenance but may require protection from harsh winter winds. While not commonly afflicted by serious pests or diseases, it can be susceptible to root rot if drainage is poor.CC BY-SA 4.0