Page 79 - 7166 - Rain Garden Handbook

ZONE EXPOSURE MATURE SIZE
Scientific Name TIME OF PLANT A-11
Common Name 1 2 3 D or E NATIVE Sun Partial Shade Height Width BLOOM CHARACTERISTICS

GROUNDCOVERS, ORNAMENTAL GRASSES, HERBACEOUS PERENNIALS, AND FERNS (CONTINUED) Plant
List
Brownish-purple flowers;
Tolmiea menziesii
makes effective groundcover
King County Native Youth-on-age, 2 D 12" to 24" 12" April to in summer; foliage present in
August
winter, when tiny leaves are
piggyback plant
seen in axils of older leaves
Washington Native Plant Trillium ovatum 2 3 D Up to 18" 12" Early Spring Unique, white flowers; not

easily adaptable
Western trillium

Vancouveria hexandra 2 3 E* 8" to 12" 12" to 36" Spring Groundcover blends with other
natives; unique flowers; foliage
Colleen Miko Inside-out flower or (Semi) is somewhat persistent over
duck's foot
winter

SMALL TO MEDIUM SHRUBS

Wikipedia Commons Arbutus unedo 'Compacta' 3 E 6' to 8' 5' to 6' Fall Adaptable; white to greenish-
white flowers; striking red-
Dwarf strawberry tree
orange fruit

Low-growing, semi-evergreen
woody perennial; small
Caryopteris clandonensis 3 E* 2' to 3' 2' to 3' Mid Summer lavender-blue or sapphire-blue
WSU Extension Blue mist (Semi) to Fall flowers in robust clusters; some
cultivars have golden yellow fall
foliage; many cultivars available

Cornus sanguinea Tiny white flower clusters;
The Seattle Times 'Midwinter Fire' 1 2 3 D 5' to 6' 4' to 6' May to June adaptable to various soil
bright red stems in winter;
Bloodtwig dogwood
conditions

Small white flowers in clusters;
berry-like bluish-white fruits;
Cornus sericea
US Forest Service Red-twig dogwood 1 2 3 D 7' to 9' Spreading May to June striking red stems provide
12'
winter color; adaptable to
various soil conditions