More Fall-Blooming Perennials

Spent blossoms on these summer-flowering perennials can be clipped to encourage blooming long into the fall.


Hardy begonia (Begonia grandis subsp. evansiana)

Fragrant, clump-forming pink or white flowers with oval olive-green leaves; blooms from mid-summer to early fall, sometimes through frost; up to 2 feet tall; grows best in part to full shade in rich, well-drained soils; hardy to -10 degrees F; Zones 6 to 9