10 Seeds Clethra alnifolia Sweet Pepperbush Shrub

Clethra alnifolia, also known as Sweet Pepperbush, is a charming native shrub prized for its fragrant, bottlebrush-like spikes of white blooms that appear in mid to late summer. This deciduous plant is a lovely addition to woodland edges, rain gardens, or mixed borders, offering gentle visual interest and attracting beneficial pollinators with its sweet scent. Its natural, tidy growth habit makes it a versatile choice for gardeners seeking a low-maintenance and ecologically friendly ornamental.
This shrub performs beautifully in moist to average soils and can tolerate both full sun and part shade, making it adaptable to many garden settings. The blooms give way to small, pepper-like seed capsules that add late-season texture, while the foliage turns a soft yellow in autumn for extended appeal. Ideal for naturalized plantings, foundation beds, or cottage gardens, Sweet Pepperbush offers four seasons of interest with minimal fuss.
Species: Clethra alnifolia
Type: Deciduous shrub
Sun: Full sun to partial shade
Soil: Moist, well-drained; tolerates wet sites
Days_to_Harvest: Not applicable
Zones: 4-9
Germination: Cold stratification recommended; sow indoors 8-10 weeks before last frost
Sowing: Surface sow seeds; press lightly onto soil
Spacing: 4-6 feet apart
Notes: Slow to establish; keep soil consistently moist