Sweet pepperbush

Clethra alnifolia 'Hummingbird'

Photo/Illustration: 
Courtesy of White Flower Farm
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Sweet pepperbush (Clethra alnifolia 'Hummingbird')
KLETH-rah all-nih-FOE-lee-ah
Genus:  Clethra
This upright, suckering shrub bears creamy white, deliciously spicy clove-scented flowers in dense, upright spikes that last four to six weeks in July and August. It is more compact than the species. Flowers mature to spikes of dark brown capsules that provide winter interest. Its oval, glossy dark green leaves turn a pleasant yellow in autumn.
Noteworthy Characteristics:  A favorite of bees, this compact, rounded shrub is ideal for small gardens, growing 3 feet tall and wide at maturity. The species is native to the eastern U.S.
Care:  Thrives in consistently moist but well-drained soil in full sun to partial or dappled shade but is highly adaptable to other conditions. More floriferous than the species, it provides good bloom in shady locations. In winter, remove some of the oldest wood from the base; the stronger new growth will replace it in spring. Blooms on current year growth.
Propagation:  Sow seed at 43° to 54°F in spring or autumn. Root greenwood cuttings in early summer.
Problems:  Fungal dieback and root rot can occur.

Overview

Height
1 ft. to 3 ft.
Spread
1 ft. to 3 ft.
Growth Habit
Spreads
Light
Full Sun to Part Shade
Moisture
Medium Moisture
Maintenance
Moderate
Characteristics
Attracts Butterflies,
Fragrant Flowers,
Native,
Showy Flowers
Bloom Time
Early Fall,
Fall,
Late Summer,
Summer
Flower Color
White Flower
Uses
Beds and Borders
Style
Woodland Garden
Seasonal Interest
Summer Interest
Type
Shrubs

Related Plants to Clethra alnifolia 'Hummingbird'

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Summersweet
Clethra alnifolia 'Pink Spire'
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Sweet pepperbush
Clethra alnifolia 'Sixteen Candles'
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Smooth hydrangea
Hydrangea arborescens
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
Hedgehog rose
Rosa 'Charles Albanel'