Clethra alnifolia 'Hummingbird'
Clethra alnifolia 'Hummingbird' is a compact native shrub valued for its fragrant white flower spikes that bloom in midsummer when few other shrubs are in flower. Its dense habit and glossy green foliage make it an excellent choice for smaller landscapes while providing strong seasonal interest and reliable pollinator activity.
Height & Spread: 24 - 36 in x 24 - 36 in
Bloom Time: Midsummer
Light Requirements: Part sun to shade
Soil Preference: Moist acidic well drained soil
Watering Needs: Moderate to high; prefers consistently moist soil
Deer Resistance: Deer resistant
Native Status
This species is native to the eastern United States and is commonly found in moist woodlands and along streambanks where it supports local ecosystems and pollinators.
WILDLIFE & INSECTS
Butterflies
- Attracts Swallowtails, Monarchs, and other nectar seeking butterflies during its midsummer bloom.
Bees
- Highly attractive to native bees, bumblebees, and honeybees which forage for nectar from the fragrant flower spikes.
Hummingbirds
- Draws in hummingbirds which visit the blooms for nectar during the peak flowering period.
Spacing & Landscape Use
Spacing Recommendations
- Space 24 - 36 in apart to allow for its dense mounded habit to develop fully.
Landscape Placement
- Ideal for foundation plantings, woodland gardens, and along wet edges where its compact size and fragrant blooms can be appreciated.
Companion Plants
- Itea virginica 'Little Henry' (Sweetspire) - Provides complementary native structure and strong fall color in similar moisture conditions.
- Hydrangea arborescens 'Annabelle' (Smooth Hydrangea) - Adds bold summer blooms that contrast with the upright flower spikes.
- Fothergilla gardenii (Dwarf Fothergilla) - Offers spring flowers and exceptional fall color to extend seasonal interest.
- Carex pensylvanica (Pennsylvania Sedge) - Forms a soft ground layer that works well beneath shrubs in part shade.
- Osmunda cinnamomea (Cinnamon Fern) - Brings height and texture to moist woodland plantings.