Category Archives: Native Plants

Douglas Spirea

Spiraea douglasii

Also known as hardhack or steeplebush, Douglas spirea (Spiraea douglasii) is best known for its large, pink, pointy clusters of small flowers that bloom from May – July. The flower clusters turn dark in late summer and linger on the plant for months, adding visual interest.

A fast grower that can reach 10-12 feet tall in just a few years, Douglas spirea favors open sunny areas and can tolerate seasonal flooding. It can spread aggressively in moist environments, but is better behaved in drier areas.

Many butterflies visit this plant for nectar and lay their eggs on it, including pale swallowtail, Lorquin’s admiral, spring azure, and mourning cloak.

Light Requirements: Full Sun, Part Shade
Water Requirements: Moist, Seasonally Wet
Ease of Growing: Easy to grow
Growth Rate: Fast
Spreads: Yes
Wildlife Support: Pollinators, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible: No
Mature Height: 6ft
Mature Width:3-7ft

Red Columbine

Aquilegia formosa

Red columbine (or Western columbine) is a common and attractive wildflower. It is native to western North America, from Alaska to Baja California and eastward to Montana and Wyoming. The name red columbine is also used for a number of other members of the genus Aquilegia.

Within its range, red columbine can be found across many habitats, including chaparral, oak woodland, and mixed-evergreen or coniferous forest. It prefers moist locations such as stream banks.

The plant grows to 8-48″ in height, averaging around 1-2ft. The red and yellow flowers appear from April to August (with some variation between regions), and are about 5 cm long. The red or orange spreading outer parts of the flower are sepals, and the yellow inner parts are the true petals. The petals bear spurs that attract the plant’s pollinators, sphinx moths.

Light Requirements: Full Sun, Part Shade
Water Requirements: Moist
Ease of Growing: Easy to grow
Growth Rate: Fast
Spreads: Yes
Wildlife Support: Hummingbirds, Pest-eating Insects
Fire-resistant: Yes
Edible: No
Mature Height: 3ft
Mature Width:1-2ft

Narrow-leaved Mules Ear

Wyethia angustifolia

Also known as “Narrow-leaved Mule’s Ear” or “California Compassplant”. The inflorescence produces one or more large sunflower-like flower heads at the top of the hairy stem. Large lance-shaped, basal leaves with several smaller, alternate, stem leaves.

Light Requirements: Full Sun, Part Shade
Water Requirements: Dry, Moist
Ease of Growing:
Growth Rate: Moderate
Spreads:
Wildlife Support: Pollinators, Birds or Mammals
Fire-resistant: No
Edible:
Mature Height: 2ft
Mature Width:1ft

Bigleaf Maple

Acer macrophyllum

Acer macrophyllum (Bigleaf or Oregon Maple) is a large deciduous tree with the biggest leaves of any maple. It can grow to nearly 100 feet tall, but more commonly reaches 50-70 feet. It is native to western North America, mostly near the Pacific coast, from southernmost Alaska south to southern California. Some stands are also found inland in the foothills of the Sierra Nevada mountains of central California, and a tiny population occurs in central Idaho.

The palm-shaped leaves are typically 6-12 inches across, with five deeply-incised lobes. The flowers are produced in spring in loose dangling clusters, greenish-yellow with inconspicuous petals. The fruit is a paired, winged, V-shaped samara.

Bigleaf maple is a great wildlife tree. It provides nectar for pollinators, food for the young of tiger swallowtails and mourning cloak butterflies, and shelter for cavity-nesting birds. Mature trees are often covered with moss and ferns which are home to many invertebrates. These miniature ecosystems far above the forest floor capture and filter rain water, and provide food and nest material for birds and small mammals.

Cultivation and Uses

Maple syrup has been made from the sap of bigleaf maple trees. While the sugar concentration is about the same as in sugar maple (Acer saccharum), the flavor is somewhat different. Interest in commercially producing syrup from bigleaf maple sap has been limited.

The lumber from this tree has diverse uses, such as furniture, piano frames and salad bowls. Highly figured wood is not uncommon and is used for veneer and guitar bodies.

Light Requirements: Full Sun, Part Shade
Water Requirements: Dry, Moist, Seasonally Wet
Ease of Growing: Easy to grow
Growth Rate: Fast
Spreads: No
Wildlife Support: Pollinators, Hummingbirds, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible: Yes
Mature Height: 90ft
Mature Width:70ft

Salal

Gaultheria shallon

Salal is a low-growing, leathery-leaved evergreen shrub that tolerates a wide variety of conditions. Its dark blue “berries” (actually swollen sepals) are edible raw and can be made into jams, preserves, and pies. Salal berries are mildly sweet, and are often used in combination with the more tart Oregon grape.

In the Willamette Valley, salal prefers full to partial shade. In coastal areas it can form deep, nearly impenetrable thickets, and easily tolerates full sun. It grows as far north as Baranof Island, Alaska.

Salal leaves are also harvested and sold to florists worldwide for use in floral arrangements.

Light Requirements: Part Shade, Full Shade
Water Requirements: Dry, Moist
Ease of Growing: Easy to grow
Growth Rate: Moderate
Spreads: Yes
Wildlife Support: Pollinators, Hummingbirds, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible: Yes
Mature Height: 1-5ft
Mature Width:1-5ft

Incense Cedar

Calocedrus decurrens

Incense cedar is a conifer native from central-western Oregon through most of California. It has a distinct symmetrical shape and can get up to 90 feet tall in its native habitat.

The bark is orange-brown weathering grayish, smooth at first, weathering to grayish, fissured bark that sheds in long strips on the lower trunk on old trees. The fragrant, bright-green foliage is produced in flattened sprays with scale-like leaves. The seed cones look like the open beak of a duck. They turn orange to yellow-brown when mature about 8 months after pollination.

Many birds depend on insects that live on incense cedar, including woodpeckers, brown creepers, red-breasted nuthatches, and golden-crowned kinglets. Birds use the dense foliage for nesting in the summer and shelter in the winter. This tree is also the preferred host of a wood wasp, Syntexis libocedrii, a living fossil species which lays its eggs in the smoldering wood immediately after a forest fire.

Cultivation and Uses

The wood is the primary material for wooden pencils, because it is soft and tends to sharpen easily without forming splinters. It is also a popular ornamental tree, valued for its drought tolerance. In cool summer climates (such as in Washington, British Columbia, etc.), incense cedar tends to grow narrower than in the wild, making it a good choice for large hedges and screens.

Light Requirements: Full Sun
Water Requirements: Dry
Ease of Growing: Easy to grow
Growth Rate: Slow
Spreads: No
Wildlife Support: Birds or Mammals
Fire-resistant: No
Edible: No
Mature Height: 100-150ft
Mature Width:30ft

Evergreen Huckleberry

Vaccinium ovatum

Evergreen Huckleberry is a small to medium sized evergreen shrub native to the Pacific Northwest regions of the United States and British Columbia. In the Willamette Valley, it prefers full to partial shade, but will tolerate full sun in coastal areas. It grows slowly and prefers acidic soils.

The shiny, alternately arranged leaves are 2-3.0cm long and 1-1.5cm wide with finely serrated edges. In mid-summer, the plant produces round, edible black berries about 0.5 – 1.0cm in diameter. The berries are a valuable traditional food for many Native American cultures in the Pacific Northwest.

Light Requirements: Full Sun, Part Shade, Full Shade
Water Requirements: Moist
Ease of Growing: Easy to grow
Growth Rate: Slow
Spreads: Yes
Wildlife Support: Pollinators, Hummingbirds, Birds or Mammals
Fire-resistant: Yes
Edible: Yes
Mature Height: 4-8ft
Mature Width:3-6ft

Slough Sedge

Carex Obnupta

Slough sedge is native to western North America from British Columbia to California where it grows in wetland habitats. The plant produces upright, angled stems approaching 1.2 meters in maximum height, growing in beds or colonies from rhizome networks. The inflorescence is a cluster of flower spikes accompanied by a long leaflike bract.

Wildlife

The lens-shaped seeds are eaten by many kinds of wildlife. Birds known to eat sedge seeds include coots, ducks, marsh birds, shorebirds, upland game birds, and songbirds. In addition to providing food for many wildlife species, sedges are also valuable for cover. Frequently they provide nesting cover for ducks, and their tufted growth furnishes concealment and bedding for other animals. Beavers, otters, muskrats and minks make their way through the sedges as they go to and from the water.

Ethnobotanic

The leaves of slough sedge are used for both wrapping and twining in the grass baskets that are well known and widely marketed by Nitinaht and Nootka women even today.

The Nitinaht believed that picking grasses such as slough sedge for baskets and mats causes fog. The fisherman were always getting annoyed with the women who harvested these materials, because they were always making it foggy. It is said that Hesaquiat men shaved with this grass because the edges are so sharp. There is a saying in Hesaquiat which translates as “you’re just like citapt (slough sedge)” – you never change, because slough sedge is always the same and never seems to change in appearance.

Erosion Control

Slough sedge provides erosion control and streambank stabilization. The dense swards of slough sedge provide sediment retention and nutrient uptake, thus contributing to water quality improvement. Emergent wetland plant communities dominated by slough sedge provide the following hydrologic functions: maintaining river or stream meander patterns; providing a broad, shallow plain where streams slow and sediment deposition occurs; stormwater abatement; a mixing zone where brackish and freshwaters meet; and nutrient-rich habitat for aquatic organisms, fish, waterfowl, and predators such as otter, bald eagles, herons, and raccoons to feed.