6a. Flowers every year (windy urban)
Once established, many plants that flower every year (perennials) can largely be left to do their own thing. They annually manage a good floral season without the need to 'deadhead' (remove spent blooms). In most cases they eventually form large clumps. You can choose to divide these or just leave them alone!
Plants (1449)
Aster novi-belgii 'Audrey'
New York aster, Michaelmas daisy
Aster novi-belgii 'Blue Lagoon'
New York aster, Michaelmas daisy
Aster novi-belgii 'Chatterbox'
New York aster, Michaelmas daisy
Aster novi-belgii 'Dandy'
New York aster, Michaelmas daisy
Aster novi-belgii 'Ernest Ballard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Fellowship'
New York aster, Michaelmas daisy
Aster novi-belgii 'Freda Ballard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Grey Lady'
New York aster, Michaelmas daisy
Aster novi-belgii 'Heinz Richard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Kristina'
New York aster, Michaelmas daisy
Aster novi-belgii 'Marie Ballard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Niobe'
New York aster, Michaelmas daisy
Aster novi-belgii 'Norman's Jubilee'
New York aster, Michaelmas daisy
Aster novi-belgii 'Patricia Ballard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Professor Anton Kippenberg'
New York aster, Michaelmas daisy
Aster novi-belgii 'Purple Dome'
New York aster, Michaelmas daisy
Aster novi-belgii 'Rosenwichtel'
New York aster, Michaelmas daisy
Aster novi-belgii 'Royal Ruby'
New York aster
Aster novi-belgii 'Sandford White Swan'
New York aster, Michaelmas daisy
Aster novi-belgii 'Sarah Ballard'
New York aster, Michaelmas daisy
Aster novi-belgii 'Snowsprite'
New York aster, Michaelmas daisy
Aster novi-belgii 'Sophia'
New York aster, Michaelmas daisy
Aster novi-belgii 'Terry's Pride'
New York aster, Michaelmas daisy
Aster novi-belgii 'Waterperry'
New York aster, Michaelmas daisy
Aster novi-belgii 'White Ladies'
New York aster, Michaelmas daisy
Aster novi-belgii 'Winston S Churchill'
New York aster, Michaelmas daisy
Aster novi-belgii Samoa = 'Dasthree'
New York aster, Michaelmas daisy
Aster oolentangiensis
American prairie aster, Sky-blue aster
Aster peduncularis
Woodruff leaved aster
Aster pilosus var. demotus
Frost weed aster
Aster pilosus var. pringlei 'Monte Cassino'
Frost weed aster
Aster pyrenaeus
Pyrenean aster
Aster pyrenaeus 'Lutetia'
Pyrenean aster
Aster sedifolius
Rhone aster
Aster sedifolius 'Nanus'
Rhone aster
Aster spectabilis
Seaside purple aster, Low showy aster, Purple wood aster, Eastern showy aster
Aster thomsonii
Thomson's aster
Aster thomsonii 'Nanus'
Thomson's aster
Aster tongolensis 'Beggarten'
East indies aster
Aster tongolensis 'Wartburgstern'
East indies aster
Aster trifoliatus subsp. ageratoides 'Ashvi'
Ageratum like aster
Aster trifoliatus subsp. ageratoides 'Starshine'
Ageratum like aster
Aster turbinellum
Prairie aster
Aster umbellatus
Flat topped white aster
Aster x frikartii
Frikart's aster
Aster x frikartii 'Flora's Delight'
Frikart's aster
Aster x frikartii 'Jungfrau'
Frikart's aster
Aster x frikartii 'Monch'
Frikart's aster