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Rain Gardens – Native Plant List – Part 3

This native plant species page covers sample Herbaceous Perennials. All of the listed plants are deciduous except the evergreen Tough-Leaf Iris. Listed varieties are suited to Rain Gardens within coastal SW British Columbia.

Native Plants – Herbaceous Perennials

Great Northern Aster (Aster modestus): Zones 2 & 3
Aster modestus: Sunlight requirements - Full sun
- Great Northern Asters bloom in July and August
- 0.30-1.05 m (12-42") high, 0.90 m (36") wide
- Late Summer blooms of violet-to-purple flowers
 Great Northern Asters thrive with full sun exposure

Giant Camas (Camassia leichtlinii): Zones 2 and 3
Camassia leichtlinii: Full sun/partial sun exposure
- 0.90-1.22 m (36-48") high, 0.45 m (18") wide
- Giant Camas blooms in late Spring-to-early-Summer
- Loose clusters of light-blue to deep-blue flowers
 Showy planted in groups; aka 'Great' or 'Large' Camas

Common Camas (Camassia quamash): Zones 2 & 3
Camassia quamash: Full sun/partial sun exposure
- 45 cm (18") high, 30 cm (12") wide
- Camassia quamash blooms in May and June
- Loose clusters of deep-blue, 6-petalled flowers
 Originally in camas prairies, meadows, and by streams

Western Bleeding Heart (D. formosa): Zones 2 & 3
Dicentra formosa: Full/partial sun; blooms in Spring
- 15-50 cm (6-20") high, 15-75 cm (6-30") wide
- Pink or red heart-shaped flowers; fern-like foliage
- Spreads by seed and rhizome, can form large patches
 The commonly-available D. spectabilis is non-native

Showy Fleabane (Erigeron speciosus): Zones 2 & 3
Erigeron speciosus: Full sun/partial sun exposure
- 45 cm (18") high, 60 cm (24") wide
- Erigeron speciosus blooms in Spring and Summer
- Clusters of yellow-eyed dark violet/lavender flowers
 Leafy stems; aka 'Darkest of All' Showy Fleabane

Tough-Leaf  Iris (Iris tenax): Zones 1, 2 and 3
Iris tenax: Full sun/partial sun; blooms in May-June
- 30-45 cm (12-18") high, 30 cm (12") wide
- Showy blue flowers; slender, grass-like leaves
- Iris tenax also known as the Oregon Iris or as Flag
 Use instead of invasive non-native Yellow-Flag Iris

Lupine (Lupinus): Note: Lasts 2-5 years - Zone 3
Lupinus: Full sun/partial sun; blooms in the Summer
- 45-122 cm (18-48") high, 60-76 cm (25-30") wide
- Blue, purple, or reddish flower clusters on spikes
- Note: Many lupine species/cultivars are available
 Lupinus attracts butterflies and butterfly caterpillars

Beard Tongue (Penstemon cardwellii): Zone 3
Penstemon cardwellii: Full sun/partial sun exposure
- 20-75 cm (12-30") high, 20-60 cm (12-24") wide
- Blooms in early Summer; purple/blue-purple flowers
- Found in western forests and on rocky slopes
 Aka 'Cardwell's Penstemon'; considered a 'sub-shrub'

Woodland Beard Tongue (N. nemorosa): Zone 3
Nothochelone nemorosa: Full sun/partial sun
- 0.2-1.05 m (12-42") high, 0.2-1.05 m (12-42") wide
- Blooms in Summer; pink-purple, tubular flowers
- Coarsely-toothed oval leaves; quite long-flowering
 Nothochelone nemorosa also known as 'Turtlehead'

Henderson's Checker-Mallow (Sidalcea): Zone 1
Sidalcea hendersonii: Full sun/partial sun
- 0.9-1.2 m (36-48") high, 0.6-0.9 m (24-36") wide
- Blooms in Summer; pink flower clusters atop stems
- Spreads aggressively; complements tall bulrushes
 Salt-tolerant, found in SW BC estuaries & tidal flats

Pacific Aster (Symphyotrichum chilense): Zone 2
Symphyotrichum chilense: Full sun (sunflower family)
- 45-90 cm (18-36") high, 90 cm (36") wide
- Blooms June-to-Sept; white to purple flowers
- A salt-tolerant, rhizomatous, perennial herb
 Aka 'California Aster'; very attractive to butterflies

Douglas Aster (S. subspicatum): Zones 1, 2 and 3
Symphyotrichum subspicatum: Full sun/partial sun
- 15-90 cm (6-36") high, 90 cm (36") wide; spreading
- Blooms June-to-Sept; blue to purple flowers
- A complement to checker-mallow and bulrushes
 Tolerates some shade; prefers full sun in moist soil

Fringecup (Tellima grandiflora): Zones 2 and 3
Tellima grandiflora: Partial sun/shade
- 30 cm (12") high, up to 30 cm (12") wide
- Blooms March-to-June; yellow-green to pink flowers
- Broad-leafed foliage persists somewhat into Winter
 Fringecup is deer-resistant; Saxifrage family member

Foamflower (Tiarella trifoliata): Zones 2 and 3
Tiarella trifoliata: Partial sun/shade
- 30 cm (12") high, 30 cm (12") wide
- Blooms early-to-mid Summer; creamy-white flowers
- Broad-leafed foliage persists somewhat into Winter
Can form dense colonies, aka 'Threeleaf Foamflower'

Note: Although native, Foamflower has become rare. Avoid gathering plants from the wild. Seeds are collected by hand during late August and early Fall.

Piggyback Plant (Tolmiea menziesii): Zone 2
Tolmiea menziesii: Partial sun/shade
- 30-60 cm (12-24") high, 30 cm (12") wide
- Blooms April-to-August: brownish-purple flowers
- Foliage present in winter (tiny leaves seen in axils)
 Effective Summer groundcover; aka 'Youth-on-Age'

Western Trillium (Trillium ovatum): Zones 2 & 3
Trillium ovatum: Partial sun/shade (shade-tolerant)
- Up to 45 cm (18") high, 30 cm (12") wide
- Blooms in early Spring; three-lobed, white flowers
- Deer-resistant; FRAGILE (do not pick in the wild)
 Find nurseries which do not disturb wild trilliums

Coastal Strawberry (F. chiloensis): Zones 2 & 3
Fragaria chiloensis: Full sun/partial sun
- Blooms in Summer; white flowers, hairy red fruit
- 15-25 cm (6-10") high, 90 cm (36") wide; spreading
- Reasonably fast-growing; available commercially
 Thick, shiny evergreen leaves; prefers sandy areas

Sechelt Rain Gardens – A Native Plant List for Coastal BC – Part 4

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