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)
Aquilegia caerulea 'Colorado'
Columbine
Aquilegia chrysantha 'Yellow Queen'
Golden spurred columbine, Texas columbine, Golden columbine
Aquilegia flabellata
Fan columbine
Aquilegia flabellata var. pumila 'Atlantis'
Dwarf aquilegia, Fan columbine
Aquilegia Langdons Rainbow hybrids
Columbine, Granny's bonnet
Aquilegia long-spurred hybrids
Long-spurred columbine
Aquilegia longissima
Long-spurred columbine
Aquilegia McKana Group
Columbine, Granny's bonnet
Aquilegia pyrenaica
Pyrenees columbine
Aquilegia Songbird Series
Columbine, Granny's bonnet
Aquilegia vulgaris
Common columbine, Culverwort, European columbine, European crowfoot, Granny's bonnet
Aquilegia vulgaris 'Black Barlow'
Columbine, Barlow columbine
Aquilegia vulgaris 'Blue Barlow'
Columbine, Barlow columbine
Aquilegia vulgaris 'Bordeaux Barlow'
Columbine, Barlow columbine
Aquilegia vulgaris 'Clementine Blue'
Columbine, Clementine columbine
Aquilegia vulgaris 'Clementine Rose'
Columbine, Clementine columbine
Aquilegia vulgaris 'Clementine Salmon Rose'
Columbine, Clementine columbine
Aquilegia vulgaris 'Clementine White'
Columbine, Clementine columbine
Aquilegia vulgaris 'Nivea'
Common columbine, Granny's bonnet
Aquilegia vulgaris 'Rose Barlow'
Columbine, Clementine columbine
Aquilegia vulgaris 'White Barlow'
Columbine, Barlow columbine
Aquilegia vulgaris 'William Guinness'
Common columbine, Granny's bonnet
Aquilegia vulgaris 'Winky Blue-White'
Columbine, Winky columbine
Aquilegia vulgaris 'Winky Double Red-White'
Columbine, Winky columbine
Aquilegia vulgaris 'Winky Double White-White'
Columbine, Winky columbine
Aquilegia vulgaris 'Winky Purple-White'
Columbine, Winky columbine
Aquilegia vulgaris 'Winky Red-White'
Columbine, Winky columbine
Aquilegia vulgaris 'Woodside Blue'
Common columbine, Granny's bonnet
Aquilegia vulgaris var. alba
Columbine, Clementine columbine
Aquilegia vulgaris var. flore-pleno 'White Bonnet'
Common columbine
Aquilegia vulgaris var. stellata 'Nora Barlow'
Common columbine, Granny's bonnet
Aquilegia vulgaris var. stellata 'Ruby Port'
Common columbine, Granny's bonnet
Aquilegia vulgaris Vervaeneana Group
Common columbine, Granny's bonnet
Aquilegia vulgaris Winky Series
Columbine, Winky columbine
Aquilegia Winky Series
Columbine
Aster 'Alpha® Dark Purple Launch'
Bushy aster
Aster 'Alpha® Purple Rocket'
Bushy aster
Aster 'Autumn Jewels Aqua Compact'
Bushy aster
Aster 'Autumn Jewels Granat'
Bushy aster
Aster 'Autumn Jewels Purple Diamond'
Bushy aster
Aster 'Autumn Jewels Rose Crystal'
Bushy aster
Aster 'Coombe Fishacre'
Hybrid calico aster
Aster 'La Vista®'
Bushy aster
Aster 'Purple Diamond'
Rice button aster, Bushy aster
Aster alpinus
Alpine aster, Blue alpine daisy
Aster alpinus 'Dunkle Schone'
Alpine aster
Aster alpinus 'Happy End'
Alpine aster, Blue alpine daisy
Aster alpinus var. albus
Alpine aster, Blue alpine daisy