Midsummer and late-season bloomers
Prune certain shrubs (list provided below) before their buds break in early spring. Names marked with an asterisk should be cut back hard; for the rest, simply remove the oldest branches as needed.
1. Japanese angelica-tree (Aralia elata) 2. Butterfly bush (Buddleja cvs.)* 3. Caryopteris (Caryopteris ×clandonensis cvs.)* 4. Bush-honeysuckle (Diervilla spp. and cvs.)* 5. Common witchhazel (Hamamelis virginiana and cvs.) 6. Rose of Sharon (Hibiscus syriacus cvs.)
7. Incrediball smooth hydrangea (Hydrangea arborescens ‘Abetwo’)* 8. Panicle hydrangea (H. paniculata cvs.) 9. St. John’s wort (Hypericum spp. and cvs.) 10. Potentilla (Dasiphora fruticosa and cvs.) 11. Ural falsespirea (Sorbaria sorbifolia)* 12. Spirea (Spiraea – most species and cultivars)