Botanical profile
Clethra alnifolia 'Summer Sparkler'
Clethra alnifolia 'Summer Sparkler' is distinguished by its long, very fine, almost feathery white flower panicles and dense, dark green foliage. This cultivar offers fragrant summer blooms that attract pollinating insects. Highly tolerant of wet conditions, it adapts well to pond edges, undergrowth, or informal hedges. Its compact habit and great vigor make it a bright and textured addition to shade gardens.
Latin name
Clethra alnifolia 'Summer Sparkler'
Common name
Sweet Pepperwort 'Summer Sparkler'
Type
Shrub
Family
Clethraceae
Care guide
Growing conditions
Light, soil, water and hardiness
Hardiness zone
Zone 4
Exposure
Partial shade
Watering
Fertilization
Soil type
Acidic, cool to moist and well-drained
Minimum temperature
'-34°C
Plant appearance
Blooming, foliage and shape
Blooming period
Summer
Flower color
White
Fruiting
Foliage color
Shape
Garden structure
Size and growth
Height
1.2 to 1.5 m (4 to 5 feet)
Width
1.2 m (4 feet)
Growth rate
average
Safe for pets
Pets
Attracts or supports pollinating insects
Pollinators
Flowers that attract butterflies
Butterflies
Helps repel certain pests
Repellent
The availability of our trees changes with new arrivals and the seasons. Some varieties may only be available for a limited time depending on their natural cycle, nursery production or supplier availability. These product pages are here to guide and inspire your choices for the garden, landscaping projects or the creation of a durable privacy screen.
