Scientific Name
Clethra alnifolia
Common Name
Summersweet; Sweet pepperbush; Clethra

Hardiness Zones: 3 to 9
Habit: Deciduous
Growth Rate: Slow to moderate
Site Requirements: Sun to partial shade; moist to wet acidic, organically enriched soil
Height: 4 to 8 feet
Width: 4 to 6 feet
Texture: Medium
Form: Dense oval to upright shrub; rounded top; often suckers to form a colony
Flower/Fruit: Intense, spicy fragrant flowers on 2 to 6" racemes in summer; five white, pink or rose petals; occurs on current season's growth; black peppercorn-like capsules
Foliage: Alternate, simple, glossy, sharply serrated medium to deep green leaves; 1.5 to 4" long; often woolly tomentose below; late to leaf out in spring; pale yellow to golden brown fall color
Comments: Spreads by stolons; hardy, carefree; can develop mites if soil is too dry; flowers attract bees, butterflies, and hummingbirds; fruit attracts birds; salt spray tolerant; native to damp areas of eastern US
Cultivars: See table
   

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