Great Plant Picks Award-Winners for Pacific Northwest Landscapes

These award-winning plants perform like champions in the Pacific Northwest climate. Follow these recommendations for the best choices for your landscape.

Designed to serve gardeners living west of the Cascade Mountains and from Eugene, Oregon, north to Vancouver, British Columbia, the Great Plant Picks educational program selects plants that perform exceptionally well in the Pacific Northwest region. The program is administered by the Elisabeth C. Miller Botanical Garden in Seattle, Washington, and it relies on a yearly selection committee made up of horticultural experts from across the region. Great Plant Picks strives to help maritime Pacific Northwest gardeners make the best possible choices for their landscapes and gardens.

Bugbane (Actaea simplex 'Brunette', syn. Cimicifuga)

Bugbane (Actaea simplex 'Brunette', syn. Cimicifuga)

Bugbane is a tall, graceful perennial that will add a touch of refinement to any lightly shaded border. The foliage is fernlike and warm brown in color. It sends its flowers up on 5- to 6-foot stems in late summer. The white flowers are very fragrant and conveniently grow tall enough so you don't have to stoop to smell them. Consider planting it with yellow variegated plants, such as Japanese forestgrass or hostas. For the best foliage color, plant in full sun to light shade. In deep shade, it tends to become leggy. Zones 5–9

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'Blue Fortune' Anise Hyssop (Agastache 'Blue Fortune')

'Blue Fortune' anise hyssop (Agastache 'Blue Fortune')

Native hyssop was crossed in the Netherlands and came back to us a winner. 'Blue Fortune' is one of the easiest plants you'll ever grow. All it needs is full sun and well-drained soil. In return, it'll bloom from midsummer to fall. The blossoms are made up of many tiny lavender flowers that will attract butterflies and other pollinators. The foliage has a delicious licorice fragrance when you brush it or crush a leaf in your hand. An upright grower, 'Blue Fortune' hyssop reaches two to three feet in height and never needs staking. It combines easily with other sun lovers, such as coneflowers and ornamental grasses. Zones 4–10

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Frikart's Aster (Aster x frikartii 'Monch')

'Monch' aster

Frikart's aster deserves a place in every garden. It flowers in a beautiful lavender-blue shade surrounding a button of yellow. It blooms for an exceeding long time, July to October, on stems two to three feet tall . This aster flowers so heavily that the stems may bend under the weight, especially after a rain. It's a good idea to stake the plant, and it's worth the trouble. Frikart's aster is a treasure for its ability to perk up a tired late-summer garden. Plant this perennial in good, fertile soil in full sun. Zones 5–8

Golden Catalpa (Catalpa bignonioides 'Aurea')

Golden catalpa (Catalpa bignonioides 'Aurea')

A small tree, golden catalpa wins with big color. Each spring, the new heart-shapes foliage emerges with a touch of red, then quickly turns to bright golden yellow. In summer, the foliage turns yellow-green before making its deep yellow statement in fall. The white flowers grow on large panicles and later produce long beanlike seedpods. Reaching 15-18 feet tall, it's the perfect size for residential gardens. Easy to grow, golden catalpa is tolerant of a wide range of soils, as long as there's good drainage. This tree delivers the best color when planted in full sun or part shade. Zones 5–9

Dwarf Hinoki Cypress (Chamaecyparis obtusa 'Nana')

Dwarf Hinoki cypress (Chamaecyparis obtusa 'Nana')

A favorite evergreen for the decorative way the foliage curls like small fans or cups, dwarf Hinoki cypress is very slow-growing, with an elegant Japanese aesthetic. It does well in foundation plantings or as a focal point in the sun or part shade. Reaching just two to three feet in height, this cypress is also at home in an ornamental pot or a rock garden. Water the shrub regularly in the summer. Zones 4–8

'Gold Heart' bleeding heart (Dicentra spectabilis 'Gold Heart')

'Gold Heart' Bleeding Heart (Dicentra spectabilis 'Gold Heart')

Bleeding hearts have long been a garden favorite due to their delightful pink blossoms that really do look like little pink hearts. 'Gold Heart' has the same darling flowers but adds a splash of color to a shady border with its golden fernlike foliage. The flowers bloom in April and May on graceful arching stems that rise just above the leaves, reaching about two feet in height. As the days become warmer, 'Gold Heart' will begin to go dormant. Plant this perennial with hostas or ferns that will fill in the gaps later in the season. Zones 3–9

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Dove Tree (Davidia involucrata)

The dove tree is without question one of the most beautiful of all flowering trees. In mid spring, round flowers appear, but are hidden by two bracts that look like delicate white handkerchiefs, often six to seven inches long. It's an astonishing sight in full bloom. Discovered in China, this small tree reaches 10-20 feet tall and wide in the Northwest, just right for urban gardens. Grow it in full sun or part shade, in moist but well-drained soil. It's also best to plant dove trees where they'll be protected from strong winds. Zones 6–8

Siberian cypress (Microbiota decussata)

Siberian Cypress (Microbiota decussata)

Although Siberian cypress has been around for some time, it's still relatively new in commerce. It has a graceful form, attractive foliage, excellent cold hardiness, and a height of just one to two feet. This classic combination has won it several plant awards. The wide-spreading evergreen makes a wonderful groundcover. It looks natural planted near boulders or cascading over retaining walls and has a pleasing layered look, with slender, nodding branch tips. It prefers full sun or partial shade. Despite some descriptions, it's not at its best in full shade and prefers full sun to partial shade. Zones 3–8

Variegated Japanese Forestgrass (Hakonechloa macra 'Albovariegata')

No garden should be without variegated Japanese forestgrass. The slender green-and-white blades add subtle color to a border, while the slightest breeze creates movement like ripples on the water. Delicate, airy seed heads float above the two-foot-tall foliage in midsummer. This ornamental grass may be grown in partial shade, or in full sun if it gets enough moisture. The long-lasting foliage works well in flower arrangements as a replacement for other greens. Zones 5–8

Helenium 'Moerheim Beauty'

This is a late-summer beauty with rusty red petals. Butterflies flock to it, but deer tend to leave it alone. 'Moerheim Beauty' can grow to about three feet tall, but to keep it more compact, pinch or partially cut back the stems in June. This encourages the plant to branch more, so it's less likely to need staking, and it will produce more flowers, as well. This perennial makes wonderful cut flowers. Plant it in full sun with average to moist soil. Zones 5–9

'Minuet' Mountain Laurel (Kalmia latifolia 'Minuet')

'Minuet' was selected because of its dwarf, compact habit. You'll never need to prune this shrub, as it will only grow about three feet tall. Nevertheless, this little mountain laurel will absolutely burst into flower in June, covering itself with fat pink buds that open to white cup-shaped blossoms with a crimson ring inside. Plant the shrub in small groups for a big splash of spring color. It also does well in decorative pots on the patio. Mountain laurel prefers moist, well-drained soil in full sun or part shade. It will not thrive in excessively hot areas. Zones 4–9

Sourwood (Oxydendrum arboreum)

Sourwood (Oxydendrum arboreum)

What isn't fabulous about this tree? Plant sourwood alone as an accent. The foliage on this 20- to 25-foot-tall tree is lustrous and deep green. The flowers bloom in August, smothering the foliage in chains of white blossoms that look like lilies-of-the-valley. The blossoms give way to cream-colored berries that are backed by stunning fall foliage in shades of gold, scarlet, and purple. Sourwood prefers sun to part shade and acidic soil. It does not like to compete for water, so it's best not to plant anything underneath the tree. Zones 5–9

'Gulf Stream' Heavenly Bamboo (Nandina domestica 'Gulf Stream')

This heavenly bamboo is a well-behaved evergreen shrub with four seasons of interest. It has a compact, mounded form reaching just two to three feet in height and a little less in width. The new foliage is scarlet red, slowly changing to a bluish-green summer color. As fall days become cooler, the foliage changes again to bright red, but doesn't drop. Stems of small white flowers are a bonus. Thanks to its size, this shrub is a versatile landscape plant, great for foundation plantings and narrow spots between buildings and walkways. It's easy to grow in full sun or part shade. Zones 6–9

Stipa and Sculptures

Giant Needlegrass (Stipa gigantea)

It's often described as the most magnificent of all the ornamental grasses. Native to Spain, Portugal, and Morocco, giant needlegrass will lend a touch of the fantastic to your garden. From a base of narrow, arching foliage, gigantic flower stems reach from six to eight feet tall. In June, the silvery-purple flowers open, turning golden when ripe. They're excellent for dried flower arrangements. This grass makes a stately specimen plant. Giant needlegrass may also be planted in large groups or on embankments for erosion control. Plant it in full sun in well-drained soil. It won't tolerate wet soil, and is drought-tolerant once established. Zones 8–10

'Tor' Birchleaf Spirea (Spiraea betulifolia 'Tor')

This spirea is a hardworking plant with loads of charm. 'Tor' grows into a perfectly round shrub about two to three feet tall and wide. The name likely comes from the Gaelic word torr, meaning hill or mound. White flowers cover the shrub in spring, attracting butterflies. The summer foliage is dark green, but lights up in autumn with vibrant red, orange, and purple leaves. 'Tor' makes a great small hedge and looks wonderful planted in groups. The deer-resistant shrub also works well in foundation plantings and shrub borders. It's easy to grow in well-drained soil in full sun. Zones 3–9

'Green Vase' Japanese Zelkova (Zelkova serrata 'Green Vase')

'Green Vase' Japanese zelkova is a fast-growing tree with a lovely upright habit. It grows twice as fast as the species and has won awards for its stunning habit and beautiful winter silhouette. It eventually reaches 60 to 70 feet tall and 40 to 50 feet wide. Dark green foliage turns to soft yellow, orange, and russet in the autumn. Mature trees have an interesting bark pattern that adds another season of beauty. Zelkova is prized for its tolerance to high wind, pollution, drought, and compacted soils. Zones 5–9

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