These 18 long-blooming perennials willbloom all summerand even into fall.
Growing only three to six inches high, it blooms from June through September.
Other than this, little maintenance is required.
The Spruce
Phlox does best in mild summer temperatures in a location that gets good air circulation.
Deadhead spent flowers to prevent rampant self-seeding.
Stella de Oro requires little care and it is easy to divide whenever you want topropagate new plants.
The Spruce / Evgeniya Vlasova
They are tough plants, displaying resilience and endurance which belie their delicate appearance.
They bloom from July through September on plants that grow three to four feet in height.
If youdeadhead yourSalviaregularly, these perennials just might bloom all summer.
The Spruce / David Beaulieu
They flower for several months, though the timing of the bloom period varies depending on the species.
This long-blooming perennial is showy but in the most tasteful way possible.
Plants grow to five feet in height, though they may sprawl.
The Spruce / David Beaulieu
They bloom from July through October.
Divide the plants every three to five years.
Deadheading spent flowers will lengthen the bloom period.
The Spruce / Autumn Wood
They will benefit from division every four years or so but are otherwise very low-maintenance.
Other than this, they require little maintenance.
The hand-pollinated cultivar blue chip butterfly bush (Buddleia davidii’Blue Chip') is an exception.
The Spruce / Krystal Slagle
It is sterile, so it does not spread.
It is a diminutive 1-to-2-foot tall version.
Its numerous, small flowers form in showy bluish-purple spikes.
The Spruce / Leticia Almeida
It flowers from midsummer into October.
The standard species (Buddleja davidii) is formally invasive in multiple states.
Deadheading withprunerswill prompt more frequent re-blooming and prevent the plants from spreading through self-seeding.
The Spruce / David Beaulieu
This is a relatively short-lived perennial that some gardeners allow to colonize through self-seeding.
Various cultivars offer different flower and foliage colors.
This perennial is highly prized for thelong-lasting fall colorit provides.
The Spruce / David Beaulieu
The blooms are actually large masses of smaller flowers that clump together in groups three inches or more across.
Catmint typically grows to about 12 inches high and is used as aground cover.
Shearing the flower spikes after they bloom will stimulate vigorous re-blooming.
The Spruce / Adrienne Legault
Spiked Speedwell
Many species and cultivars of speedwell exist, including creeping types.
Other cultivars grow as high as three feet.
The key to extending the flowering season of ‘Royal Candles’ is regular shearing.
The Spruce / Leticia Almeida
Red Hot Poker
The flowers of red hot poker (Kniphofia uvaria) match the name precisely.
Also called torch lily, it grows three to four feet tall with red and yellow flowers.
Hybrids and cultivars come in different heights and flower colors.
The Spruce / Evgeniya Vlasova
Spent flower heads should be removed immediately, but no division of clumps is necessary.
It is agood plant for edging, ground cover, or for trailing over walls.
Under ideal conditions, the plant spreads readily, but it is not too hard to control.
The Spruce / David Beaulieu
Divide plants every three to four years to keep clumps vigorous.
However, the heart shapes aren’t as perfect as common bleeding hearts.
Moonbeam blooms early in the summer and will continue to do so until the end of the fall.
The Spruce / Leticia Almeida
Many perennials attract butterflies and other pollinators.
Butterflies love garden phlox, coneflower,Salvia, butterfly bush, and many other perennials.
The three longest-blooming shrubs are rhododendron, butterfly bush, and panicle hydrangea.
The Spruce / K. Dave
Invasive Plant Atlas of the United States.
Hylotelephium ‘Herbstfreude’ AUTUMN JOY.
The Spruce / Evgeniya Vlasova
The Spruce / Evgeniya Vlasova
The Spruce / David Beaulieu
The Spruce / David Beaulieu
