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20 Long-Blooming Perennials

Stella De Oro Daylily
Stella De Oro Daylily

Long-blooming perennials are perennial plants that will hold blossoms for weeks on end–sometimes as long as 5 to 8 weeks for each flower. Long-blooming perennials are also plants that produce successions of blooms over a long season. They bloom and then they bloom again.

Perennials are often referred to as the “busy gardener’s favorites” because once planted they stay in the garden for 3 or more years with no need for replanting. Long-blooming perennials go one step further; they stay in the garden for several years and they bloom and bloom.

With the judicious selection and arrangement of long-blooming perennials, a gardener can be assured of continuous blooms and color from spring to autumn.

Preparing for Long-Blooming Perennials

Because a perennial bed is permanent it should be well prepared. Dig the soil to a depth of at least 12 inches (30cm) and mix a 2 to 3 inch (5-7.6cm) of aged compost and well-rotted manure. Sprinkle bonemeal across the bed as well. Thorough preparation at the start will ensure the soil does not need renewal or elaborate attention for a few years.

Coreopsis 'Zagreb'
Coreopsis ‘Zagreb’

20 Long-Blooming Perennials

Common NameBotanical NameZones
AsterAster spp. ‘Moench’, ‘September Ruby’, ‘Wonder of Staffa’4-8
Black-eyed Susan, perennialRudbeckia fulgida ‘Goldstrum’3-9
Blanket flower, perennialGaillardia x grandiflora ‘Baby Cole’2-10
Bleeding heart, fringedDicentra eximia3-9
CatmintNepeta x faassenii ‘Dropmore’, ‘Six Hills Giant’4-9
CoreopsisCoreopsis spp. ‘Sunray’, ‘Early Sunrise’, ‘Zagreb’, ‘Moonbeam’3-9
DaylilyHemerocallis spp. ‘Stella de Oro’, ‘Happy Returns’, ‘Lemon Lollipop’, ‘Black-Eyed Stella’3-10
Bath's Pink, Dianthus gratianopolitanus
Bath’s Pink, Dianthus gratianopolitanus
Common NameBotanical NameZones
GoldenstarChrysogonum virginianum5-9
Joe-pye weedEupatorium purpureum3-10
Lavender, EnglishLavandula angustifolia5-8
Phlox, gardenPhlox paniculata ‘Eva Cullum’, ‘Fran Schubert’4-8
Pinks, Bath’sDianthus gratianopolitanus ‘Bath’s Pink’4-9
Pinks, Sweet WilliamDianthus spp.3-8
Russian sagePerovskia atriplicfolia5-7
Salvia, perennial blueSalvia x superba ‘May Night’4-8
Pincushion flower, Scabiosa caucasica
Pincushion flower, Scabiosa caucasica
Common NameBotanical NameZones
ScabiosaScabiosa caucasica ‘Butterfly Blue’3-7
SedumSedum ‘Autumn Joy’3-10
Shasta daisyLeucanthemum x superbum ‘Butterfly Blue’3-7
Thrift, seaArmeria maritima4-8
VerbenaVerbena spp.8-10
VeronicaVeronica spp. ‘Sunny Border Blue’ 
White gauraGaura lindeimeri5-9
YarrowAchillea spp. ‘Fire King’, ‘Apple Blossom’3-9

Also of interest:

Designing with Perennials

Perennials and Their Seasons

Ten Autumn Blooming Perennials

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