6a. Flowers every year, perennial (windy rural)
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)
Achillea millefolium 'Sammetriese'
Bloodwort, Woundwort, Nosebleed, Thousand leaved yarrow, Sanguinary, Carpenter's weed
Achillea millefolium 'Wonderful Wampee'
Bloodwort, Woundwort, Nosebleed, Thousand leaved yarrow, Sanguinary, Carpenter's weed
Achillea ptarmica 'Perry's White'
Goosewort, Sneezeweed, White tansy, Swamp yarrow
Achillea ptarmica The Pearl Group 'The Pearl' (clonal)
Goosewort, Sneezeweed, White tansy, Swamp yarrow
Achillea sibirica 'Love Parade'
Siberian yarrow
Achillea tomentosa
Alpine yarrow, Woolly haired yarrow
Achillea tomentosa 'Goldie'
Alpine yarrow, Woolly-haired yarrow
Achillea x lewisii 'King Edward'
Ornamental yarrow
Agastache rugosa f. albiflora 'Alabaster'
Korean mint
Allium 'Beau Regards'
Ornamental onion
Allium 'Bubble Bath'
Ornamental onion
Allium 'Eros'
Ornamental onion
Allium 'Lavender Bubbles'
Perennial allium
Allium 'Millennium'
Ornamental onion
Allium 'Ostara'
Ornamental onion
Allium 'Pinball Wizard'
Ornamental onion
Allium 'Violet Beauty'
Ornamental onion
Allium atropurpureum
Drumstick allium
Allium karataviense 'Red Giant'
Kara Tau garlic, Blue tongue allium
Aquilegia 'Alaska'
Columbine
Aquilegia 'Blue Jay'
Columbine, Granny's bonnet
Aquilegia 'Blue Star'
Columbine, Granny's bonnet
Aquilegia 'Cardinal'
Columbine, Granny's bonnet
Aquilegia 'Crimson Star'
Columbine, Granny's bonnet
Aquilegia 'Dove'
Columbine, Granny's bonnet
Aquilegia 'Dragonfly'
Columbine
Aquilegia 'Florida'
Columbine, Granny's bonnet
Aquilegia 'Georgia'
Fan columbine
Aquilegia 'Louisiana'
Columbine, Granny's bonnet
Aquilegia 'Mrs Scott Elliott hybrids'
Columbine
Aquilegia 'Oregon'
Columbine, Granny's bonnet
Aquilegia 'Purple Emperor'
Columbine, Purple columbine
Aquilegia 'Red Star'
Columbine
Aquilegia 'Redwing'
Columbine
Aquilegia 'Rhubarb and Custard'
Columbine, Red columbine, Meeting-house columbine
Aquilegia 'Robin'
Columbine, Granny's bonnet
Aquilegia 'Rose Queen'
Columbine
Aquilegia 'Spring Magic Blue and White'
Columbine
Aquilegia 'Spring Magic Navy and White'
Columbine
Aquilegia 'Spring Magic Rose and Ivory'
Columbine
Aquilegia 'Spring Magic Rose and White'
Columbine
Aquilegia 'Spring Magic White'
Columbine
Aquilegia 'Spring Magic Yellow'
Columbine
Aquilegia 'Virginia'
Columbine
Aquilegia 'White Star'
Columbine, Winky columbine
Aquilegia alpina
Alpine columbine
Aquilegia Biedermeier Group
Columbine, Granny's bonnet
Aquilegia buergeriana 'Calimero'
Columbine, Japanese columbine