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Dwarf Indica (Gumpo

Rhododendron eriocarpum (rho-doh-DEN-dron er-ee-oh-KAR-pum)

Family: Ericaceae Non-native Herbaceous (1-3 ft)

Dwarf indica (gumpo) azalea is a woody, rounded, broadleaf semi-evergreen shrub in the Ericaceae (blueberry) family that slowly grows to 1 to 2 feet high and wide. This small shrub or groundcover is native to the Ryukyu Islands in Japan. The genus name derives from the Greek words rhodo , which means rose, and dendron , meaning tree. This slow growing plant prefers moist, well-drained, acidic soil. Amend soil with organic matter especially in dense clay. It grows best in partial shade and needs protection from afternoon sun, which can scorch the leaves. Pruning may be done after flowering. Dwarf indica is very frost tender and may not flower in cooler climates. This azalea is moderately salt tolerant. The flowers are showy and attract bees and other pollinators so give it a home in a naturalized area or pollinator garden. Use in an accent in a foundation planting, as a small hedge, or plant in the front of a border. It does well in containers or mass planted as a ground cover. Insects, Diseases, and Other Plant Problems: Insect problems include aphids, borers, lace bugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips, and whitefly. Diseases include canker, crown rot, root rot, leaf spot, rust, and powdery mildew. While these shrubs remain very popular for landscape use, many cultivars are susceptible to Phytophthora root rot—this leads to leaf loss, reduced vigor, branch dieback, and wilting. Implement good cultural practices first, such as improving drainage with organic matter or berms and avoiding overwatering or overfertilization. However, if you have a site with a history of this disease, consider planting a root rot-resistant alternative species. For suitable alternatives, see this video created by Charlotte Glen as part of the Plants, Pests, and Pathogens series. VIDEO Created by Elizabeth Meyer for " Trees, Shrubs and Conifers " a plant identification course offered in partnership with Longwood Gardens. More information on Rhododendron .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 55 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Acid (<6.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Rhododendron indicum
Fills a similar niche Rhododendron flammeum Rhododendron ponticum Rhododendron 'Ramapo'
Similar, less problematic Abelia 'Edward Goucher' Rhaphiolepis x delacourii Rhaphiolepis x delacourii Snowcap® 'Corleyscourii'

Full plant profile

Growing Conditions
Plant type
Ground Cover; Poisonous; Shrub
Life cycle
Woody
USDA zones
6a, 6b, 7a, 7b, 8a, 8b
Light
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0)
Soil drainage
Good Drainage | Moist
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 0 in. - 2 ft. 0 in. | Width: 1 ft. 0 in. - 2 ft. 0 in.
Growth rate
Slow
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Rounded; Spreading
Texture
Fine
Foliage
Semi-evergreen
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Alternate
Leaf shape
Elliptical; Obovate
Leaf size
1-3 inches long
Hairs present
Yes
Leaf detail
Stiff brown hairs cover obovate to elliptic leaves and petioles. Leaves 1" long.
Flower color
Pink; Purple/Lavender; White
Flower value
Showy
Flower shape
Funnel
Flower detail
White or with purple-pink tips funnel shaped flowers with 9-10 showy stamens, and dark flecks on the petals. 1 to 2 per inflorescence; late flowering
Fruit type
Capsule
Wildlife & Ecology
Native status
Non-native
Origin
Japan
Attracts
Bees; Pollinators; Specialized Bees
Food & Medicine
Fruit type
Capsule
Landscape Use
Landscape location
Container; Naturalized Area; Woodland
Landscape theme
Pollinator Garden
Design feature
Accent; Border; Foundation Planting; Hedge; Small groups
Garden tags
#deciduous #specialized bees #salt tolerant #native bees #evergreen #nectar plant #poisonous #pollinator plant #problem for cats #problem for dogs #problem for horses #bee friendly #foundation planting #deciduous shrub #pink flowers #small shrub #border front #white flowers #container plant #dwarf #hairy leaves #semi-evergreen #mass planting #purple flowers #low hedge #wildlife friendly #accent #small groups
Problems & Resistance
Insect problems
Azalea Lace Bug; Azalea Plant Bug; Azalea Caterpillar; Azalea Leafminer; Azalea Stem Borer; Azalea Bark Scale; Azalea Whitefly; Arthropod Pests of Azalea; Azalea Pest Management Calendar; Pests of Azalea
Disease problems
Southern Blight of Herbaceous Ornamentals
Problems
Poisonous to Humans; Problem for Cats; Problem for Dogs; Problem for Horses
Resistant to
Salt
Poison severity
Low
Poison parts
Bark; Flowers; Fruits; Leaves; Roots; Seeds; Stems
Poison symptoms
While the plants are known to contain toxins, ingestion of moderate amounts of azalea (nectar or leaves) poses little toxic hazard.
Toxic principle
Grayanotoxins
Contact dermatitis
No
Toxicity summary
Low severity poison; parts: Bark; Flowers; Fruits; Leaves; Roots; Seeds; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.