Coming at the very end of the perennial flowering season, asters (michelmas daisies) lift the autumn garden with their vivid colour.
For most of the growing period, they are rather vapid, leafy plants, so you might want to keep them in pots or a nursery bed at first and then plant them in late summer, in place of fading annuals or perennials.
Alternatively, try the longer flowering Aster x frikartii ‘Mönch’, which starts blooming as early as July and goes right through to the end of October.
