Summersweet clethra is a shrub with fragrant white or pink flowers. It is used ornamentally and for attracting pollinators. Inputs Hardiness zone 41 Hardiness zone 51 Hardiness zone 61 Hardiness zone 71 Hardiness zone 81 Outputs Wildlife habitat2 Human food2 Type Shrub Deciduous1 Footnotes Clethra alnifolia | Plants for a Future ↩ ↩2 ↩3 ↩4 ↩5 ↩6 Gaia’s Garden - A Guide to Home-Scale Permaculture, 2nd Edition Table 10-1 ↩ ↩2