southern Indian azalea (Rhododendron indicum) — identification, habitat & look-alikes

Southern Indian azalea is a small shrub native to Japan, where wild plants grow beside rocky streams. In parts of the southeastern US, its funnel-shaped pink to red flowers open in mid to late spring, and some leaves remain through winter. Southern Indian azalea is different from the much larger Southern Indica garden hybrids.

Appearance

Growth form: A low, shrub, usually 2–3 ft (0.6–0.9 m) tall and wide. Some leaves turn red in winter.
Flowers: Funnel-shaped flowers about 1–2 in (2.5–5 cm) across are usually bright pink to red, sometimes white, with darker spots on an upper lobe.
Flowering time: Mid to late spring, sometimes again in fall.
Fruit: A small, egg-shaped seed capsule.

Look-alikes

Dwarf Indica azaleaRhododendron eriocarpum

Both stay low and bloom late. Dwarf Indica often has white flowers with pink or purple tips, so photos of pink forms may be hard to separate.

Where it lives

Typical habitats: gardens
foundation plantings
woodland gardens
streamside rocks (in Japan)
Range: Native to Japan, where it grows along rocky streams. In the US it is cultivated as an ornamental shrub, including in the Southeast.
Preferred conditions: Hardy in 7–8. Prefers part shade and acidic, well-drained soil rich in organic matter that stays evenly moist; it does poorly in heavy wet soil or drought.

Cautions

Cautions: Like other azaleas, all parts contain , though reported toxicity is low.

Name and classification

About the name: This species was formerly named Azalea indica. Southern Indian azalea is also called Satsuki azalea.
Varieties and forms: Satsuki azaleas include many garden selections bred from this species and related azaleas. Flowers can be pink, red, white, or patterned.

Conservation

IUCN Red List: NENot EvaluatedNot yet assessed

Culture and stories

Culture and stories: Satsuki azaleas are also grown as bonsai.

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