Mt Cuba Center
Explore the Gardens Virtual Tour Virtual Tour
HOURS

Mt. Cuba is open Wednesday through Sunday, 10 am to 6 pm.

An ecological gardening certificate student completes a Native Plants of Fall exam in Mt. Cuba Center's naturalistic gardens.
Ecological Gardening Certificate Learn More Learn More
Program Guide

Classes offered year-round. Learn to garden in harmony with nature, take an art or wellness class, and more!

Wide shot of flowering Amsonia.
Latest Trial: Amsonia for the Mid-Atlantic Region Amsonia for the Mid-Atlantic Region Amsonia for the Mid-Atlantic Region
Trial Garden

Mt. Cuba Center evaluates native plants and related cultivars for horticultural and ecological value.

Mt. Cuba Center's natural lands pictured at sunset.
Protecting Natural Lands Learn More Learn More
Ecological Land Management

Mt. Cuba conserves and stewards more than 1,000 acres including meadows, forests, streams and riparian corridors.

Two guests walk down the West Slope path in spring at Mt. Cuba Center.
Gift a Membership Gift Guide Gift Guide
MEMBERSHIP

Enjoy unlimited general admission, member discounts, guest passes, and more!

close
Mt Cuba Center
Back to list

Clethra alnifolia

Native Plants

Summer Sweet Clethra

4 Photos


Summary

Summer sweet clethra (Clethra alnifolia) is a gem that brightens up the garden border during a quiet time of the season. This multi-stemmed, suckering shrub will grow 5-8’ high in full sun to part shade. It prefers moist to wet, acidic soils but is amazingly adaptable to dry conditions. Summer sweet clethra blooms during mid-summer with a profusion of white bottlebrush-like flowers that are very fragrant. This deciduous shrub has shiny, dark green leaves that turn an attractive yellow in fall. Plant summer sweet clethra with other summer bloomers like plum-leaf azalea (Rhododendron prunifolium), Goldsturm black-eyed Susan (Rubeckia fulgidaGoldsturm’), cardinal flower (Lobelia cardinalis)and black bugbane (Actaearacemosa). Zones 3-9. 


More Details

  • Plant Type
    shrub 
  • Sun/Shade Conditions
    full-sun-to-partial-shade 
  • Foliage Character
    deciduous 
  • Soil Moisture
    moist-to-dry 
  • Flowering Period
    mid-summer
  • Soil PH
    acidic 
  • Flower Color
    white 
  • Summer Foliage Color
    green 
  • Fall Foliage Color
    yellow 
  • Fruit/Seed Color
    brown