Azalea ‘Stewartstonian'

Azalea ‘Stewartstonian’: Fiery Foliage, Timeless Bloom

‘Stewartstonian’ stands out among evergreen azaleas for its year-round impact. In spring, it offers vivid red-orange blooms that emerge in dense clusters against glossy green foliage. As temperatures cool, the leaves transform into rich burgundy tones, providing dramatic fall and winter interest. Its compact, mounded shape adds structure to foundation beds or shaded borders, while its cold hardiness makes it a reliable performer in northern gardens. This is a shrub that delivers in every season.

Plant Characteristics:

• Height: 90–120 cm (3–4 ft)
• Spread: 90–120 cm (3–4 ft)
• Flower Colour: Bright red-orange
• Flowering Period: Mid to late spring
• Foliage: Evergreen, glossy green turning burgundy in fall and winter
• Sunlight Requirements: Part shade to filtered sun
• Soil Requirements: Moist, acidic, well-drained, high in organic matter

Uses and Benefits: A true four-season shrub, ‘Stewartstonian’ brings bold spring bloom and exceptional fall foliage to woodland gardens, foundation beds, and shaded borders. Its mounded, compact habit makes it suitable for mass plantings or as a focal point in smaller spaces. Evergreen foliage ensures lasting structure and interest through winter months.

Care Instructions: Plant in acidic, organically rich soil with good drainage. Water deeply and consistently during establishment and in dry weather. Mulch annually to retain moisture and insulate roots. Prune just after flowering to maintain shape and encourage denser growth. Shelter from harsh winter winds for best year-round foliage colour.

History: ‘Stewartstonian’ is a popular Glenn Dale hybrid, selected for its bright floral display and standout fall foliage. It remains one of the most widely used evergreen azaleas in northern landscapes thanks to its all-season appeal and resilient habit.

Final Thoughts: If you're looking for a shrub that delivers colour, texture, and structure across all four seasons, ‘Stewartstonian’ is a standout choice. It’s a classic that continues to earn its place in modern garden design.