Azalea 'Stewartstonian'

Stewartstonian Gable Hybrid Azalea

Azalea ‘Stewartstonian’ is a classic evergreen azalea prized for its brilliant scarlet-red flowers, excellent cold hardiness, and attractive winter foliage color. Blooming in mid spring, the single, vivid red flowers create a strong focal point in shaded landscapes.

Foliage is dark green and glossy in summer, often turning bronze to reddish-purple in winter, adding off-season interest. ‘Stewartstonian’ forms a dense, low, spreading habit, making it especially useful for mass plantings and foundations. It is widely regarded as one of the hardiest red-flowering evergreen azaleas.

Key features


Width: 4–6 ft



Height: 3–4 ft



Flower color: Bright scarlet red



Bloom time: Mid spring



Foliage: Dark green, evergreen; bronzy-red winter color



Form: Dense, low, spreading



Life cycle: Evergreen shrub



Growing conditions


Sun: Part shade (morning sun, afternoon shade preferred)



Soil: Acidic, moist, well-drained; rich in organic matter



Water: Moderate; consistent moisture preferred



Hardiness: USDA Zones 5b–8b



Landscape use


Foundation plantings



Woodland edges and shade gardens



Evergreen mass plantings



Mixed shrub borders



Notes


One of the best cold-hardy red azaleas available



Winter foliage color adds four-season interest



Generally deer resistant



Mulch to keep roots cool and evenly moist



Prune immediately after flowering if shaping is needed

Plant type

Broadleaf Evergreen, Flowering Shrub

Height

3-4'

Width

4-6'

Hardiness zones

5–8

Sunlight

Full Shade, Full sun to part shade

Growth rate

Moderate

Bloom time

Late Spring, Spring

Flower color

Red

Leaf color

Green

Fall color

Dark Green

Attracts

Bees

Soil

Loamy, Well Drained

Landscape use

Accent Plant, Container, Foundation Plant, Mass Planting

Shape

Rounded

Bark

Smooth

Fruit

Yes

Deer resistant

Yes

Drought tolerant

No