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Perennials

Herbaceous perennials that return year after year.

1,429 plants

Perennials in the database

Shore Juniper (Juniperus Conferta) — This species is drought tolerant once established and requires well-draining soil; making it an excellent choice for

Conifer

Shore Juniper

Juniperus Conferta

FullUSDA 5–9
Showy Cranesbill (Geranium X 'Magnificum') — creating a striking contrast against the rich green foliage; perennial for full or half

Perennial

Showy Cranesbill

Geranium X 'Magnificum'

FullUSDA 9–10
Showy Daisy Or Fleabane, Mountain A (Erigeron Formosissimus) — which signals a resilience against cold

Perennial

Showy Daisy Or Fleabane, Mountain A

Erigeron Formosissimus

FullUSDA 6–9
Showy Goldenrod (Solidago Speciosa) — golden-yellow flower clusters it produces in late summer to fall

Perennial

Showy Goldenrod

Solidago Speciosa

FullUSDA 2–9
Showy Milkweed (Asclepias Speciosa) — Ideal to naturalize in wildflower meadows or borders; large leaves.<br><br>Reaching heights of about 2 to 4, image 90

Perennial

Showy Milkweed

Asclepias Speciosa

FullUSDA 4–10
Showy Pink Oregano (Origanum Sipyleum) — Its fragrant foliage, with a spread of roughly 18 inches, offers a burst of aroma when brushed against

Perennial

Showy Pink Oregano

Origanum Sipyleum

FullUSDA 7–11
Showy Sunflower (Helianthus 'Lemon Queen') — is a robust perennial reaching up to 6-8 feet tall with a spread of 3-4 feet

Perennial

Showy Sunflower

Helianthus 'Lemon Queen'

FullUSDA 3–10
Shrubby Penstemon (Penstemon Fruticosus) — The Shrubby Penstemon (Penstemon fruticosus) is a perennial shrub standing 2-3 feet tall; space plants 18-24 inches

Perennial

Shrubby Penstemon

Penstemon Fruticosus

FullUSDA 4–8
Siberian Barren Strawberry (Waldsteinia Ternata) — emphasize its ease of care

Ground cover

Siberian Barren Strawberry

Waldsteinia Ternata

FullUSDA 4–9
Siberian Bugloss (Brunnera Macrophylla) — scientifically named Brunnera macrophylla; providing a charming contrast against the foliage, image 56

Ground cover

Siberian Bugloss

Brunnera Macrophylla

Deep ShadeUSDA 2–10
Siberian Iris (Iris Sibirica) — This iris is hardy in USDA zones 3 through 8; iris sibirica should be planted in a location that receives full sun to part shade

Perennial

Siberian Iris

Iris Sibirica

FullUSDA 3–10
Siberian Larkspur (Delphinium Grandiflorum) — is a herbaceous perennial that offers a striking addition to any landscape design; perennial with blue blooms

Perennial

Siberian Larkspur

Delphinium Grandiflorum

FullUSDA 3–10
Siberian Melicgrass (Melica Altissima) — narrow green leaves form a dense, image 41

Perennial

Siberian Melicgrass

Melica Altissima

FullUSDA 4–9
Siberian Squill (Scilla Siberica) — thriving in USDA zones 2 through 8

Bulb

Siberian Squill

Scilla Siberica

FullUSDA 2–8
Sicklepod Rockcress (Boechera Sparsiflora) — Boechera sparsiflora boasts lance-shaped

Herb

Sicklepod Rockcress

Boechera Sparsiflora

FullUSDA 5–10
Side Oats Grama (Bouteloua Curtipendula) — it thrives in full sun and well-drained soils; this ornamental grass adds a fine-textured

Grass

Side Oats Grama

Bouteloua Curtipendula

FullUSDA 5–11
Sierra Bush Monkeyflower (Diplacus Grandiflorus) — This shrub reaches 1-3 ft in height, bearing large, showy orange to reddish flowers in spring and summer

Perennial

Sierra Bush Monkeyflower

Diplacus Grandiflorus

FullUSDA 9–10
Silver Archangel (Lamiastrum 'Hermans Pride') — dark green foliage with a serrated edge

Ground cover

Silver Archangel

Lamiastrum 'Hermans Pride'

Deep ShadeUSDA 3–10
Silver Bush Lupine (Lupinus Albifrons) — Silver Bush Lupine (Lupinus albifrons) is a perennial shrub native to the U.S; this sun-loving plant blooms in

Perennial

Silver Bush Lupine

Lupinus Albifrons

FullUSDA 9–10
Silver Carpet Beach Aster (Lessingia Filaginifolia 'Silver Carpet') — The Silver Carpet Beach Aster (Lessingia filaginifolia 'Silver Carpet') is a California

Ground cover

Silver Carpet Beach Aster

Lessingia Filaginifolia 'Silver Carpet'

FullUSDA 9–11
Silver Carpet Corethrogyne (Corethrogyne 'Silver Carpet') — Corethrogyne 'Silver Carpet', or Silver Carpet California Aster, is a low-growing, groundcover

Ground cover

Silver Carpet Corethrogyne

Corethrogyne 'Silver Carpet'

FullUSDA 8–11
Silver Carpet Lamb's Ear (Stachys Byzantina 'Silver Carpet') — silver-foliaged mats reaching heights of 6-8 inches and spreading up to 18-24 inches

Ground cover

Silver Carpet Lamb's Ear

Stachys Byzantina 'Silver Carpet'

FullUSDA 4–8
Silver Dragon Lilyturf (Liriope Spicata 'Silver Dragon') — It boasts low maintenance

Perennial

Silver Dragon Lilyturf

Liriope Spicata 'Silver Dragon'

FullUSDA 5–9
Silver Edge Siberian Iris (Iris Sibirica 'Silver Edge') — The Iris sibirica 'Silver Edge' is a hardy perennial featuring striking

Perennial

Silver Edge Siberian Iris

Iris Sibirica 'Silver Edge'

FullUSDA 2–9

Photographs are credited on each plant’s page.