Common Name: AgeratumScientific Name Genus: AgeratumFamily Name: AsteraceaeIdentification NotesAgeratum is prized for its blue flowers and is one of best blue-flowered annuals available. Ageratum performs best in the late spring and early summer and in the early fall. Some varieties have more heat tolerance especially the vegetatively propagated types.Life CycleAnnual reproducing from seed. Growth Habit dense, compact mounds to 12” tall Leavesopposite, ovate, cordate base, petioled, margins crenate-serrate. Flowersheads forming dense, nearly flat-topped, clusters of small (1/4”dia.) blue, white or pink flowers. Bloom TimeJune – September Propagation MethodSeed or Vegetative Varieties or CultivarsHawaii Blue Landscape Usesbedding; edging; foreground; containers. Ageratum is a good blue-flowered annual. It blooms best when the nights are cool – spring and fall. There are also tall varieties used as cut flowers.