Ageratum houstonianum- Floss flower -Frost tender annual of the aster family. Characterized by flowerheads in which the ray flowers are tubular, creating a fine feathery effect. Blooms June to frost -Full sun to part shade. Requires moist soil that never becomes dry.
Pot of the month: June. Contains Ageratum houstonianum, purple bedding salvia and purple coleus. Photo by Sarah Cuttle. For tips on coleus care, see http://www.gardenersworld.com/plants/ageratum-houstonianum-blue-mink/2674.html