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The database

Perennials

Herbaceous perennials that return year after year.

1,429 plants

Perennials in the database

Blackeyed Susan (Rudbeckia F.S. 'Goldstrum') — is a vivacious perennial that is a staple in any sunny garden landscape for its ease of care and bright

Perennial

Blackeyed Susan

Rudbeckia F.S. 'Goldstrum'

FullUSDA 3–9
Black-Eyed Susan (Rudbeckia Hirta) — commonly known as Black-Eyed Susan

Perennial

Black-Eyed Susan

Rudbeckia Hirta

FullUSDA 3–10
Black-Eyed Susan (Rudbeckia Nitida 'Herbstonne') — Its late summer blooms attract butterflies and are excellent for cutting

Perennial

Black-Eyed Susan

Rudbeckia Nitida 'Herbstonne'

FullUSDA 4–10
Black-Eyed Susan Cultivars (Rudbeckia Hirta Cvs.) — or in naturalized areas to attract pollinators like bees and butterflies to the garden

Perennial

Black-Eyed Susan Cultivars

Rudbeckia Hirta Cvs.

FullUSDA 3–10
Blackfoot Daisy (Melampodium Leucanthum) — providing a year-round backdrop of color

Perennial

Blackfoot Daisy

Melampodium Leucanthum

FullUSDA 5–11
Black Negligee Snakeroot (Actaea 'Black Negligee') — Recognized for its striking

Perennial

Black Negligee Snakeroot

Actaea 'Black Negligee'

HalfUSDA 3–9
Blacknight Hollyhock (Alcea Rosea 'Blacknight') — commonly known as Blacknight Hollyhock

Perennial

Blacknight Hollyhock

Alcea Rosea 'Blacknight'

FullUSDA 3–10
Black Scallop Bugleweed (Ajuga Reptans 'Black Scallop') — valued for its dark purplish-black foliage and dense habit

Ground cover

Black Scallop Bugleweed

Ajuga Reptans 'Black Scallop'

FullUSDA 3–9
Black Snakeroot (Actaea Racemosa) — It thrives in USDA hardiness zones 3 through 8

Perennial

Black Snakeroot

Actaea Racemosa

HalfUSDA 3–8
Black Taffeta Alum Root (Heuchera 'Black Taffeta') — The Heuchera 'Black Taffeta' offers luxurious, silky black foliage that gives depth to landscape designs

Perennial

Black Taffeta Alum Root

Heuchera 'Black Taffeta'

HalfUSDA 4–9
Bladder Campion (Silene Uniflora) — hence the name "Bladder" Campion; it bears white, balloon-like flowers atop 6-12 inch stems with narrow, image 179

Perennial

Bladder Campion

Silene Uniflora

HalfUSDA 1–11
Blanket Flower (Gaillardia X Grandiflora) — daisy-like blossoms in red

Perennial

Blanket Flower

Gaillardia X Grandiflora

FullUSDA 3–9
Blatant Bearded Iris (Iris Bearded 'Blatant') — The Bearded Iris 'Blatant' is a striking perennial, boasting showy bicolor blooms up to 6 inches wide

Perennial

Blatant Bearded Iris

Iris Bearded 'Blatant'

FullUSDA 3–10
Blazing Star (Tritonia Deusta) — which typically blossom in the spring to early summer

Bulb

Blazing Star

Tritonia Deusta

FullUSDA 3–10
Blazing Sunset Geum (Geum 'Blazing Sunset') — fiery red flowers reaching 2 to 3 inches across

Perennial

Blazing Sunset Geum

Geum 'Blazing Sunset'

FullUSDA 5–7
Bloodleaf (Iresine Herbstii) — Bloodleaf performs best with consistent moisture and can be used as a striking accent plant; the Bloodleaf stands about 12 to 18

Perennial

Bloodleaf

Iresine Herbstii

FullUSDA 10–11
Bloodleaf (Iresine Herbstii ''Aureoreticulata') — Iresine herbstii 'Aureoreticulata'

Perennial

Bloodleaf

Iresine Herbstii ''Aureoreticulata'

FullUSDA 10–11
Bloody Cranesbill (Geranium Sanguineum) — ground cover / perennial for full or half; colorful foreground in any landscape design, image 88

Ground cover

Bloody Cranesbill

Geranium Sanguineum

FullUSDA 3–10
Blue Angel Hosta (Hosta 'Blue Angel') — heart-shaped foliage and its ability to thrive in shaded areas of the garden

Perennial

Blue Angel Hosta

Hosta 'Blue Angel'

HalfUSDA 3–9
Blue Aster (Aster X Frikartii) — Blooms from mid-summer to early fall, attracting butterflies

Annual

Blue Aster

Aster X Frikartii

FullUSDA 6–10
Blue Beach Aster, Seaside Daisy (Erigeron Glaucus) — which boast petals ranging in color from soft lavender to vibrant violet with sunny yellow centers; making

Ground cover

Blue Beach Aster, Seaside Daisy

Erigeron Glaucus

FullUSDA 6–10
Blueberry Fair Siberian Iris (Iris Sibirica 'Blueberry Fair') — Preferring full to partial sun and moist, well-drained soil, it's ideal for borders and water

Perennial

Blueberry Fair Siberian Iris

Iris Sibirica 'Blueberry Fair'

FullUSDA 2–9
Blueberry Sundae False Indigo (Baptisia 'Blueberry Sundae') — deciduous perennial featuring vibrant indigo-blue flowers resembling pea blossoms

Perennial

Blueberry Sundae False Indigo

Baptisia 'Blueberry Sundae'

FullUSDA 4–9
Blue Boa Agastache (Agastache Hybrid 'Blue Boa') — Its fragrant foliage and long-blooming flowers

Perennial

Blue Boa Agastache

Agastache Hybrid 'Blue Boa'

FullUSDA 5–9

Photographs are credited on each plant’s page.