Rhododendron maximum is one of the easier species to grow from seed and clones can be grafted. Mature plants multiply naturally by layering and can be coaxed into layering easily with a "well dropped brick". The dense thickets of Rhododendron maximum in the wild is a result of this amazing propagation trait.

Those looking for a compact large flowered rhododendron for full sun or windswept areas will be quite disappointed by Rhododendron maximum. However, although its flowers are small and lack fragrance, Rhododendron maximum's extreme hardiness, late bloom time, dark green foliage, and ability to flower in dense shade makes it a handsome addition to the background of a large woodland shade garden.