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20 Long-Blooming Perennials

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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

Written by Stephen Albert

Stephen Albert is a horticulturist, master gardener, and certified nurseryman who has taught at the University of California for more than 25 years. He holds graduate degrees from the University of California and the University of Iowa. His books include Vegetable Garden Grower’s Guide, Vegetable Garden Almanac & Planner, Tomato Grower’s Answer Book, and Kitchen Garden Grower’s Guide. His Vegetable Garden Grower’s Masterclass is available online. has more than 10 million visitors each year.

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