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Mountain Sweet Pepperbush

Clethra acuminata

Last reviewed: July 2026

Mountain Sweet Pepperbush (Clethra acuminata)
Photo: Bananenfalter / Wikimedia Commons (CC0)

Light

part shade

Water

medium

Size

72"–240" H × 48"–120" W

Bloom

Jul, Aug

Native to

AL, GA, KY, NC and 5 more states

Pollinators

bees, butterflies, moths

Mountain sweet pepperbush is a large native shrub that produces fragrant white flower spikes in mid to late summer. It thrives in partial shade with moderate moisture and provides excellent seasonal interest with its aromatic blooms and attractive fall foliage.

In an HOA neighborhood

Mountain Sweet Pepperbush is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.

Works well in: mid zone, foundation.

  • Large mature size may overwhelm smaller landscapes
  • Can appear sparse in winter without leaves

Wildlife value

The fragrant summer flowers attract bees, butterflies, and moths, making it valuable for pollinators during the peak growing season.

Common questions

How much sun does Mountain Sweet Pepperbush need?
Mountain Sweet Pepperbush grows best in part shade conditions.
When does Mountain Sweet Pepperbush bloom?
Mountain Sweet Pepperbush blooms in July and August.
Where is Mountain Sweet Pepperbush native?
Mountain Sweet Pepperbush (Clethra acuminata) is native to AL, GA, KY, NC and 5 more states, per the USDA PLANTS Database and regional native plant society lists.
What pollinators does Mountain Sweet Pepperbush attract?
Mountain Sweet Pepperbush draws bees, butterflies, and moths.
Is Mountain Sweet Pepperbush HOA-friendly?
Mountain Sweet Pepperbush is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Mountain Sweet Pepperbush? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz