The catalog/Species
Clethra spp.
Genus-level entry. These cultivars are recorded under Clethra with no species — typically inter-species hybrids or supplier listings without an extracted species name.
Cultivars
SUGARTINA ‘Crystalina’
Clethra 'Crystalina'
Super useful Sugartina ® 'Crystalina' clethra has a dwarf habit and fragrant, pure white flowers in mid summer. It has dark glossy foliage turns a nice bright yellow in fall. Developed by Dr. Tom Ranney at NCSU, it holds its tight, dense shape without pruning. Ideal scale and features list for residential landscapes!
‘Hummingbird’
Clethra 'Hummingbird'
Filters: Botanical genus: Clethra , Common name: Summersweet , Retail program: Local Roots® , USDA Zone 4 , USDA Zone 5 , USDA Zone 6 , USDA Zone 7 , USDA Zone 8 , USDA Zone 9 , Exposure: Full sun , Exposure: Part sun , Bloom time: Summer , White flowers , Green foliage
Ripple Effect
Clethra 'SMNCAC'
A fountain of flowers and fragrance, Ripple Effect™ summersweet was a favorite in our trials, selected for its multiple, successively blooming, floral racemes. The fragrant white flowers bloom abundantly in summer, drawing in bees, butterflies, and other pollinators. The flowers are backdropped by healthy dark green foliage, which gets a lovely blend of fall coloring in autumn. This native Clethra alnifolia has a dense, compact habit, tucking nicely into foundation plantings, mixed borders, or in pollinator or wildlife gardens.