Scarlet Frost Azalea
Rhododendron 'Scarlet Frost'
Scarlet Frost Azalea flowers
(Photo courtesy of NetPS Plant Finder)
Height: 3 feet
Spread: 3 feet
Hardiness Zone: 5b
Group/Class: Schroeder Hybrids
Clusters of blooms that are a delicate pink with bold scarlet blotches, cover this azalea in mid to late spring; a compact upright shrub that is great for low cover along borders; needs highly acidic and organic soil that is well drained
Scarlet Frost Azalea is covered in stunning clusters of lightly-scented pink trumpet-shaped flowers with a scarlet blotch at the ends of the branches in mid spring before the leaves. It has green foliage throughout the season. The glossy narrow leaves do not develop any appreciable fall color. The fruit is not ornamentally significant.
Scarlet Frost Azalea is an open multi-stemmed deciduous shrub with a more or less rounded form. Its relatively coarse texture can be used to stand it apart from other landscape plants with finer foliage.
This is a relatively low maintenance shrub, and should only be pruned after flowering to avoid removing any of the current season's flowers. It has no significant negative characteristics.
Scarlet Frost Azalea is recommended for the following landscape applications;
- Mass Planting
- General Garden Use
- Container Planting
Planting & Growing
Scarlet Frost Azalea will grow to be about 3 feet tall at maturity, with a spread of 3 feet. It has a low canopy. It grows at a slow rate, and under ideal conditions can be expected to live for 40 years or more.
This shrub does best in full sun to partial shade. It requires an evenly moist well-drained soil for optimal growth, but will die in standing water. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the leaves in alkaline soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This particular variety is an interspecific hybrid.
Scarlet Frost Azalea makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when grown in a container, it may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.