Category Archives: Native Plants

Golden Currant

Ribes aureum

Golden currant (Ribes aureum) is a small to medium-sized deciduous shrub named for its golden flowers and golden red fall foliage. It is common in Oregon and Washington east of the Cascades and into the Great Basin.

Golden currant grows in full sun and partial shade, in dry to moist conditions, and is drought tolerant. The leaves are deciduous, lobed, and vaguely maple-like, ½ – 1½ inches. Charming clusters of yellow flowers bloom from mid- to late-spring. Golden currant grows to approximately 6 feet tall by 6 feet wide.

It attracts hummingbirds and butterflies such as the spring azure and mourning cloak, and the fruit is eaten by birds and other wildlife. Combine this in a sunny spot with its cousin, red-flowering currant, and drought-tolerant groundcovers like alliums and camas, for a beautiful native display!

Light Requirements: Full Sun, Part Shade
Water Requirements: Dry, Moist
Ease of Growing:
Growth Rate: Moderate
Spreads: No
Wildlife Support: Hummingbirds, Birds or Mammals
Fire-resistant: No
Edible: Yes
Mature Height: 6ft
Mature Width:6ft

Goat’s Beard

Aruncus dioicus

Goat’s Beard has decorative finely-cut foliage and will create a bold, showy effect for a moist or partly-shaded spot all season. Dense, feathery plumes of tight white flowers rise well above the foliage spring to summer.

Goat’s Beard is an excellent background plant or grouped in a woodland setting. It dies back to the ground in winter, only to return gloriously in the spring. Goat’s Beard spreads slowly by rhizomes to form attractive patches, and can be planted in more sunny areas provided there is good moisture. It’s a “host” plant to the Dusky Azure Butterfly.

Light Requirements: Part Shade, Full Shade
Water Requirements: Moist, Perennially Wet
Ease of Growing: Easy to grow
Growth Rate: Fast
Spreads: Yes
Wildlife Support: Pest-eating Insects, Birds or Mammals, Pollinators
Fire-resistant: No
Edible: No
Mature Height: 5-15ft
Mature Width:3-5ft

Tall Oregon Grape

Mahonia aquifolium (Berberis aquifolium)

Tall Oregon grape (Mahonia aquifolium) is the state flower of Oregon. The plant is not related to grapes, but gets the name from the purple clusters of berries it produces every fall. Its sharply pointed leaves resemble holly. The bright yellow clusters of flowers in April and May are both a lovely sign of spring, and a welcome sources of nectar for early pollinators including mason bees and bumblebees.

Painted lady butterflies, half-white carpet moths, mining bees, and other insects also use the flowers for food. The berries are eaten by many wildlife, including robins, waxwings, juncos, sparrows, and towhees, as well as foxes, coyotes, and raccoons.

Tall Oregon grape is well suited for low-maintenance plantings or loose evergreen hedges. It grows 5-8 feet tall depending on conditions, so in the garden it serves as a good evergreen backdrop, especially when combined with salal, sword fern, and evergreen hucklebery. Tall Oregon grape tolerates poor soils and summer drought, especially if it has some shade.

Light Requirements: Full Sun, Part 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: 5-8ft
Mature Width:2-8ft

Oregon iris

Iris tenax

Iris tenax is a species of Iris native to southwestern Washington and northwestern Oregon. It is known as the tough-leaved iris or Oregon iris. It occurs along roadsides and in grasslands and forest openings at low to middle elevations. One subspecies is also known from northern California.

Like most irises, it has large and showy flowers. The flowers bloom in mid to late spring and are usually lavender-blue to purple, but blooms in white, yellow, pink, and orchid shades are known to sometimes occur.

Light Requirements: Full Sun, Part Shade
Water Requirements: Dry, Moist
Ease of Growing: Moderate
Growth Rate: Moderate
Spreads:
Wildlife Support: Hummingbirds, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible:
Mature Height: 1-2ft
Mature Width:1-2ft

Snowberry

Symphoricarpos albus

Few plants are as aptly named as snowberry. Small bell-like pink flowers give way to scattered clusters of white berries in late summer, which stay on the delicate, arching branches through the fall and much of winter. The small, pale green oval leaves turn a soft yellow in the fall.

Snowberries are at their best in the landscape when combined with other plants. They bring an airy lightness to the understory that contrasts well with the thick evergreen leaves of salal and low Oregon grape, the red stems of red osier dogwoods, and the feathery green foliage of Western hemlock and Western redcedar.

The berries are eaten late in winter by thrushes, towhees, robins, waxwings, and grosbeaks. Anna’s and rufous hummingbirds are attracted to the flowers, as are many species of native bees. Snowberry also provides food for the young of vashti sphinx moths and is generally good cover for wildlife.

Snowberry is tolerant of a wide variety of growing conditions, spreads easily, and makes an excellent addition to any garden.

Light Requirements: Full Sun, Part Shade, Full Shade
Water Requirements: Dry, Moist
Ease of Growing: Easy to grow
Growth Rate: Fast
Spreads: Yes
Wildlife Support: Pollinators, Hummingbirds, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible: No
Mature Height: 3-6ft
Mature Width:2-4ft

Noble Fir

Abies procera

Noble fir (Abies procera) is native to the Cascade Range and Coast Range mountains of northwest California, western Oregon and western Washington.

It is a large evergreen tree typically up to 40-70 m tall and 2 m trunk diameter (rarely to 89 m tall and 2.7 m diameter), with a narrow conic crown. The bark on young trees is smooth, grey, and with resin blisters, becoming red-brown, rough and fissured on old trees. The glaucous blue-green needle-like leaves are 1-3.5 cm long. They are arranged spirally on the shoot, but twisted slightly to curve up above the shoot. The cones are erect, 11-22 cm long; they do not fall to the ground intact, but instead ripen and disintegrate to release winged seeds in fall.

It is a high altitude tree, typically occurring at 300-1,500 m altitude, only rarely reaching tree line.

Uses

Noble Fir is a popular Christmas tree. The wood is used for general structural purposes and paper manufacture.

Light Requirements: Full Sun, Part Shade
Water Requirements: Moist
Ease of Growing: Easy to grow
Growth Rate: Moderate
Spreads: No
Wildlife Support: Birds or Mammals
Fire-resistant: No
Edible: No
Mature Height: 250ft
Mature Width:30ft

Vine Maple

Acer circinatum

Vine maple (Acer circinatum) commonly grows as a large open shrub or small tree reaching 10-25 feet tall. It typically grows in the shady forest understory but is sometimes found out in the open. Like many plants, it typically gets taller in the shade and stays more compact in the sun.

Like all maples, the branches and leaves grow in pairs off the stem, known as “opposite branching.” Leaves are 3-14 cm long and broad, and thinly hairy on the underside. They are palmately lobed with 7-11 lobes, which are pointed with coarsely toothed margins. The flowers make a small but dramatic show in spring, blooming a bright red and whitish-green from May – June. The fruit is a two-seeded winged fruit called a samara, starting green then turning reddish-brown as they ripen. The leaves turn bright yellow to orange-red in fall and provide some of our most vivid native fall color.

Vine maples are important trees for wildlife. They provide nesting sites and cover for many birds and mammals. Vireos weave basket-like nests that hang in the forks of the branches. Birds use the seed stalks and leaves for nest building. Squirrels, chipmunks and birds eat the seeds, and the caterpillars of the brown tissue moth and Polyphemus moth forage on the leaves.

Vine maple grows best in part shade and moist soils. It can live out in the open but exposed leaves may burn and turn reddish in the afternoon sun. This is a beautiful specimen plant for a shady corner, or a tall screen to soften the side of a house. Pair it with snowberry and ferns for year-round interest.

: Vine maple is fire-resistant – remember, though, being fire-resistant does not mean it will not burn!

Light Requirements: Full Sun, Part Shade, Full Shade
Water Requirements: Moist
Ease of Growing: Easy to grow
Growth Rate: Moderate
Spreads: No
Wildlife Support: Pollinators, Pest-eating Insects, Birds or Mammals
Fire-resistant: Yes
Edible: No
Mature Height: 20-25ft
Mature Width:15-20ft

Oregon Ash

Fraxinus latifolia

Note: Due to the recent arrival of emerald ash borer in Oregon, ash trees in our region are at high risk of mortality over the next several decades. See OSU Extension Service’s emerald ash borer resources page for more information about how you can slow the spread and protect your ash trees.

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Oregon ash is native to western North America on the west side of the Cascade Range from southwestern British Columbia south through western Washington and western Oregon to central California.

It can grow to 80 ft in height, with a trunk diameter of 3ft. The leaves are pinnate, 3.5-10″ long, with 5-9 ovate leaflets. The fruit is a samara, 3-5 cm long including the wing. The leaves turn a striking yellow in the fall.

Oregon ash prefers damp, loose soils, and grows from sea level to 900 meters. It is a dominant tree in local forested wetlands, paired with an understory of spiraea and slough sedge.

Oregon ash is an ideal deciduous tree to plant along streams, seeps, and wet areas. It forms an attractive shape, tolerates saturated soils, and shades waterways.