Stewartstonian Azalea
Rhododendron hybrid ‘Stewartstonian’ – Azalea
Other Names: Stewartsonian Azalea (misspelling)
Plant Details
USDA Plant Hardiness Zones: 5a-8b Find Your Zone
Plant Type: Evergreen Flowering Shrub
Height at Maturity: 4-5′
Width at Maturity: 4-5′
Spacing: 3.5′ for solid hedges; 7’+ for space between plants
Growth Habit / Form: Rounded Mound
Growth Rate: Moderate
Flower Color: Orange-Red
Flower Size: 1.5″
Flowering Period: Mid Spring
Flower Type: Single
Fragrant Flowers: No
Foliage Color: Deep Green, Reddish-Chocolate during winter
Fragrant Foliage: No
Sun Needs: Morning Sun with Dappled or Afternoon Shade, All Day Filtered Sun or Dappled Shade
Water Needs: Average, lower when established
Soil Type: Clay (Amend heavy clay to ensure good drainage), Loam, Sandy, Silt
Soil Moisture / Drainage: Moist But well-Drained
Soil pH: 5.0 – 6.5 (Acid to Slightly Acid)
Maintenance / Care: Low, Average
Attracts: Butterflies, Beneficial Pollinators, Visual Attention
Resistances: Cold Temperatures (-20F / Zone 5-8), Rabbit
Description
An oldie-but-goodie that has stood the test of time for good reasons, ‘Stewartstonian’ is a Gable Hybrid evergreen azalea developed for cold hardiness (-20F) and flower-power by the late Joseph Gable of Stewarts, Pennsylvania. In mid spring a profusion of brilliant orange-red flowers literally engulf the foliage – truly stunning! A medium-sized mounding shrub to 4 to 5 feet tall and equally as wide, it has handsome deep-green glossy leaves that turn a handsome chocolate-red color with the arrival of cold temperatures in late fall and winter. Stewartstonian Azalea is one of those evergreen flowering shrubs that puts on such a color show it will always have you, and the butterflies and hummingbirds, looking forward to spring. Excellent as a specimen, in groupings or as a colorful hedge.
Landscape & Garden Uses
Growing in a rounded mound 4 to 5 feet tall and equally as wide, the Stewartstonian Azalea is ideal for use as an accent, in groupings or mass plantings, or as a low hedge in partially shaded landscape and woodland borders and home foundation plantings. Budded and blooming branches serve very well for cutting to create stunning indoor floral arrangements. A fine addition to azalea gardens, orange or red theme gardens, Asian theme gardens and cottage gardens.
Suggested Spacing: 3.5 to 4 feet apart for solid hedges; 6 feet or more apart for space between plants
Growing Preferences
Evergreen Azaleas are easy to grow when planted right and in the right spot. They prefer a moist but well-drained and acidic soil that is rich in organic matter and part sun. Morning sun with afternoon shade or filtered sun is ideal. Evening sun is fine. Azaleas do not like wet feet so avoid planting them in sites where the soil stays constantly soggy or wet. Moderate drought tolerance when established.
Helpful Articles
Click on a link below to find helpful advice from our experts on how to plant and care for Azaleas.
Planting Evergreen Azaleas In The Ground & In Pots
Fertilizing & Watering Evergreen Azaleas
Pruning Evergreen Azaleas
We are proud members of the ASA
Plant Long & Prosper!
Meet The Wilson Brothers & Staff
Questions? Contact Us!





























Reviews
There are no reviews yet.