Rhododendron minus
An evergreen shrub native to the Southern Appalachians and foothills, it prefers cool, moist rocky ravines and high-elevation slopes, blooms from late April to early June, and was recently separated from a closely related species once treated as the same
Common Names
Piedmont Rhododendron, Carolina Laurel, Dwarf Rhododendron, Carolina Rhododendron
Summary
Rhododendron minus Michx., Piedmont rhododendron, is an evergreen shrub native to the southeastern United States with a typical height of 2–5 meters and a spreading habit, bearing elliptic to lanceolate leaves dark green above with dense brown scales beneath and brown-dotted undersides, and dense terminal inflorescences of 5–8 pink to white flowers (often with greenish flecks) that bloom in spring; preferring bright shade and a moisture range from moderately wet to moderately dry, it grows in rocky, gravelly, or sandy loams that are strongly to moderately acidic, and is used ornamentally in woodland landscapes with pollinator value, especially for bees. It has two varieties, var. chapmanii and var. minus; propagation is moderately easy from seed and difficult by cuttings, with seeds sown in sphagnum moss over a 2:1 perlite/peat mix and germinated under mist or in a plastic tent at 45–50°F. The plant is hardy to USDA Zone 5 and RHS H6; shelter from winter ice and wind, annual mulch to buffer temperature, and avoidance of fertilizer salts are advised; all parts are poisonous to humans.
Lifecycle
Perennial
Height
36-72 inches
Spread
3-6 feet
Hardiness Zones
Zones 5
Sunlight Requirements
Ideally partial shade, tolerates a few hours of morning sun.
Soil Type
Well-drained, acidic soil high in organic matter
Soil Drainage
Well-drained soil (excellent drainage)
Soil pH
4.5-6.0, acidic
Bloom Color
Pink to White
Bloom Time
Spring
Foliage Color
Green
Fall Foliage Color
Orange, Yellow, Pink
Leaf Lifecycle
Evergreen broadleaf
Growth Rate
Medium to slow, southern populations grow faster than northern populations.
Seasons of Interest
Spring, Summer, Fall, Winter
Propagation Methods
Seeds and Cuttings
Attracts Wildlife
Attracts bees
Taxonomy
- Taxonomic Rank
- Species
- Author
- Michx.
- Publication
- J. Hist. Nat. i. 412. 1792
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Ericales
- Family
- Ericaceae
- Subfamily
- Ericoideae
- Genus
- Rhododendron
- Subgenus
- Rhododendron subgen. Rhododendron
- Section
- Rhododendron sect. Rhododendron
- Subsection
- Rhododendron subsect. Caroliniana
Synonyms
Rhododendron margarettae Rhododendron parviflorum Rhododendron punctatum Rhododendron cuthbertii Azalea minor Rhododendron carolinianum var. margarettae Rhododendron punctatum var. majus Rhododendron minus var. minus Rhododendron minus var. majus