Name: Although Aster is the traditional genus name, advances in science have led botanists to reclassify many varieties into different names. If you see labels such as Symphyotrichum, Ionactis, Eurybia, and Doellingeria on plants resembling asters, don’t be scared off or confused; these are really just asters hiding behind other names.
Size: Asters range from 1 to 6 feet tall and 1 to 4 feet wide, with some varieties being of indeterminate width.
Conditions: Most asters perform best in full sun—though some tolerate partial shade, only with fewer blooms and less vigor.
Planting: Asters can be planted almost any time of the growing season; in the North, however, it’s best to plant no later than early fall to allow plants time to establish.