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Perennials

Herbaceous perennials that return year after year.

1,429 plants

Perennials in the database

Praying Hands Hosta (Hosta 'Praying Hands') — The Hosta 'Praying Hands' showcases uniquely upright

Perennial

Praying Hands Hosta

Hosta 'Praying Hands'

HalfUSDA 3–8
Pretoria Canna Lily (Canna 'Pretoria') — with petals that have a subtly ruffled look

Perennial

Pretoria Canna Lily

Canna 'Pretoria'

FullUSDA 7–11
Pretty Face, Golden Brodiaea (Triteleia Ixioides) — Its yellow star-shaped flowers cluster atop 1-2 ft stalks in late spring to early summer

Perennial

Pretty Face, Golden Brodiaea

Triteleia Ixioides

FullUSDA 7–11
Prickly Phlox (Linanthus Californicus) — making it an ideal choice for rock gardens and coastal settings

Perennial

Prickly Phlox

Linanthus Californicus

FullUSDA 9–11
Prickly Poppy (Argemone Munita) — Its leaves and stems are covered with spiny prickles

Annual

Prickly Poppy

Argemone Munita

FullUSDA 3–10
Primadonna White Coneflower (Echinacea 'Primadonna White') — The Echinacea 'Primadonna White,' commonly known as the Primadonna White Coneflower

Perennial

Primadonna White Coneflower

Echinacea 'Primadonna White'

FullUSDA 3–9
Prince's Plume (Stanleya Pinnata) — consider its need for space to accommodate its height and potential reseeding

Perennial

Prince's Plume

Stanleya Pinnata

FullUSDA 9–10
Princess Louise Oriental Poppy (Papaver Orientale 'Princess Louise') — the distinctive flowers make a bold statement from late spring to early summer

Perennial

Princess Louise Oriental Poppy

Papaver Orientale 'Princess Louise'

FullUSDA 3–8
Puget Sound Gumweed (Grindelia Integrifolia) — commonly referred to as the Puget Sound gumweed

Perennial

Puget Sound Gumweed

Grindelia Integrifolia

FullUSDA 5–10
Punch Geranium (Pelargonium 'Punch') — Pelargonium 'Punch', a vibrant Punch Geranium, flaunts lush foliage and vivid blooms

Ground cover

Punch Geranium

Pelargonium 'Punch'

FullUSDA 9–10
Purity Evergreen Candytuft (Iberis Sempervirens 'Purity') — This groundcover reaches up to 12 inches in height and spreads up to 18 inches

Ground cover

Purity Evergreen Candytuft

Iberis Sempervirens 'Purity'

FullUSDA 3–10
Purity Evergreen Candytuft (Iberis Sempervirens 'Snowflake') — is a compact perennial ground cover reaching 6-12 inches high with a 12-18 inch spread

Ground cover

Purity Evergreen Candytuft

Iberis Sempervirens 'Snowflake'

FullUSDA 3–9
Purple Beauty Phlox (Phlox Subulata 'Purple Beauty') — Phlox subulata 'Emerald Pink'

Perennial

Purple Beauty Phlox

Phlox Subulata 'Purple Beauty'

FullUSDA 3–10
Purple Candles False Spirea (Astilbe Chinensis 'Purple Candles') — thrives in partial shade to full shade and moist conditions

Perennial

Purple Candles False Spirea

Astilbe Chinensis 'Purple Candles'

FullUSDA 4–9
Purple Coneflower (Echinacea Purpurea) — are not only a visual delight but also attract a plethora of pollinators such as butterflies and bees; by

Perennial

Purple Coneflower

Echinacea Purpurea

FullUSDA 3–9
Purple Dog Violet (Viola Riviniana 'Purpurea') — At maturity, it reaches 4 to 6 inches tall and spreads 4 to 8 inches wide

Ground cover

Purple Dog Violet

Viola Riviniana 'Purpurea'

HalfUSDA 6–10
Purple Dome New England Aster (Aster Novae-Angliae 'Purple Dome') — Ideal for borders and mass plantings, this native cultivar is drought tolerant and attracts

Perennial

Purple Dome New England Aster

Aster Novae-Angliae 'Purple Dome'

FullUSDA 3–8
Purple Dragon Dead Nettle (Lamium Maculatum 'Purple Dragon') — It grows best in partial to full shade with well-drained soil, perfect for ground cover or

Ground cover

Purple Dragon Dead Nettle

Lamium Maculatum 'Purple Dragon'

Deep ShadeUSDA 3–10
Purple Fan Flower (Scaevola 'Purple Fan') — is a vibrant asset to any garden that offers a unique aesthetic appeal

Ground cover

Purple Fan Flower

Scaevola 'Purple Fan'

FullUSDA 9–10
Purple Flame Phlox (Phlox Flame‚Ñ¢ Series Purple) — is a compact perennial reaching about 1.5 feet tall and 1 foot wide

Perennial

Purple Flame Phlox

Phlox Flame‚Ñ¢ Series Purple

FullUSDA 3–8
Purple Garden Sage (Salvia Officinalis 'Purpurascens') — Prefers well-drained soil and is drought tolerant once established; perennial / shrub with blue blooms

Perennial

Purple Garden Sage

Salvia Officinalis 'Purpurascens'

FullUSDA 8–10
Purple Haze Hummingbird Mint (Agastache 'Purple Haze') — is a perennial prized for its long

Perennial

Purple Haze Hummingbird Mint

Agastache 'Purple Haze'

FullUSDA 5–10
Purple Heart Plantain Lily (Hosta 'Purple Heart') — prefers well-drained soil

Perennial

Purple Heart Plantain Lily

Hosta 'Purple Heart'

ShadeUSDA 3–9
Purple Heart, Purple Queen (Tradescantia Pallida 'Purpurea') — so handling with gloves is recommended

Ground cover

Purple Heart, Purple Queen

Tradescantia Pallida 'Purpurea'

FullUSDA 9–10

Photographs are credited on each plant’s page.