<<

IDENTIFICATION Pat Breen, State University Typical section natural drainage system

PERENNIALS TREES EVERGREEN TREES* Gaura Norwegian Sunset Maple *Very few planted Cranesbill Pacific Sunset Maple Hinoki Cypress Sunrose Autumn Brilliance Serviceberry Austrian Pine Daylily Katsura Tree Japanese Black Pine Coral Bells Eddieʼs White Wonder Dogwood Purple Palace Cornelian Cherry DECIDUOUS SCREENING Coral Bells Purple-Leaved Hazelnut Vine Maple Belle Etoile Mock Douglasʼ Flame Ash Redtwig Dogwood Red-Flowering Currant Gladwin Iris Ballerina Yellowtwig Dogwood Peafruit Lavender Galaxy Magnolia Isanti Redtwig Dogwood Pavement Rugosa Rose Lupine Korean Mountain Ash Diane Witchhazel Salmonberry Crocus Oakleaf Hydrangea Blueberry

BROADLEAF BROADLEAF EVERGREEN EVERGREEN SHRUBS GROUND COVERS Strawberry Tree Kinnikinnik Compact Strawberry Tree Rose Queen Epimedium White Rockrose Kewensis Wintercreeper PJM Rhododendron Salal Evergreen Huckleberry Creeping Mahonia Sword Fern WETLAND EMERGENTS Sedge Daggerleaf Rush Arrowhead Small-Fruited Bulrush Youth-on-Age

LOW DECIDUOUS SHRUBS Kelseyʼs Dwarf Dogwood Tangerine Potentilla Snowberry Peggy Gaynor Pat Breen, Oregon State University

Norwegian Sunset Maple Deciduous Tree Pacific Sunset Maple Deciduous Tree (Acer truncatum x Acer platanoides ʻKeithsformʼ) (Acer truncatum x Acer platanoides ʻWarrenredʼ) Mature Size: 30ʼ-35ʼ height by 20ʼ-25ʼ spread Mature Size: 25ʼ- 30ʼ height by 20ʼ-25ʼ spread Shape: Upright oval to pyramidal Shape: Upright spreading to round Environment: Adaptable to range of soils & conditions Environment: Adaptable to range of soils & conditions Interest: Yellow-orange-red fall color Interest: Yellow-orange to bright red fall color Special Needs: None Special Needs: None Peggy Gaynor Pat Breen, Oregon State University

Autumn Brilliance Serviceberry Deciduous Tree Katsura Tree Deciduous Tree (Amelanchier x grandiflora ʻAutumn Brillianceʼ) (Cercidiphyllum japonicum) Mature Size: 20ʼ height by 15ʼ spread Mature Size: 35ʼ 40ʼ height by 35ʼ-40ʼ spread Shape: Upright, moderately spreading; May sucker Shape: Upright, pyramidal to rounded Environment: Sun; Good soil: Moderate water Environment: Protect from hot sun and dry wind Interest: White Spring flowers; Red fall color Interest: Heart-shaped foliage; Yellow-orange fall color Special Needs: Water in hot, dry weather; Prune suckers Special Needs: Water in hot, dry weather inset) Peggy Gaynor Pat Breen, Oregon State University ( Peggy Gaynor;

Eddie’s White Wonder Dogwood Deciduous Tree Cornelian Cherry Deciduous Tree (Cornus florida x C. nuttalii ʻEddieʼs White Wonderʼ) (Cornus mas) Mature Size: 25ʼ height by 20ʼ spread Mature Size: 15ʼ-20ʼ height by 15ʼ-20ʼ spread Shape: Upright, pyramidal Shape: Multi-trunk or single-trunk forms; Round to vase-shaped Environment: Needs shade; Deep, infrequent water Environment: Part sun to shade; Deep, infrequent water Interest: White May flowers Interest: Very early yellow flowers before leaves; Edible red Special Needs: Water in hot, dry weather ; Yellow-red fall color Special Needs: Water in hot, dry weather Peggy Gaynor Pat Breen, Oregon State University

Purple-Leaved Hazelnut Deciduous Tree Flame Ash Deciduous Tree (Corylus maxima ʻPurpureaʼ) (Fraxinus oxycarpa ʻFlameʼ) Mature Size: 15ʼ-20ʼ height by 10ʼ-15ʼ spread Mature Size: 35ʼ-40ʼ height by 35ʼ-40ʼ spread Shape: Upright spreading to round; May sucker Shape: Upright, rounded Environment: Sun; Well-drained soils Environment: Adaptable to range of soils & conditions Interest: Dark purple leaves; Edible fall nuts Interest: Red-purple fall color Special Needs: Prune suckers Special Needs: None Peggy Gaynor Pat Breen, Oregon State University

Ballerina Magnolia Deciduous Tree Galaxy Magnolia Deciduous Tree (Magnolia x loebneri ʻBallerinaʼ) (Magnolia liliiflora x M. sprengeri ʻDivaʼ) Mature Size: 20ʼ height by 20ʼ spread Mature Size: 30ʼ height by 15ʼ spread Shape: Rounded, low branched Shape: Pyramidal to oval Environment: Full sun; Moist, well-drained organic soil Environment: Full sun; Moist, well-drained organic soil Interest: Light pink-white early spring flowers Interest: Reddish purple late spring flowers Special Needs: Water in hot, dry weather; Mulch well Peggy Gaynor Pat Breen, Oregon State University (inset) ; Peggy Gaynor

Korean Mountain Ash Deciduous Tree Hinoki Cypress Evergreen Tree (Sorbus alnifolia) (Chamaecyparis obtusa) Mature Size: 40ʼ height by 30ʼ spread Mature Size: 20ʼ-40ʼ height by 15ʼ-30ʼ spread Shape: Oval to rounded; Simple undivided leaves Shape: Spreading, irregular, open; Very slow-growing Environment: Adaptable to conditions; Resists borers Environment: Sun; Well-drained soils Interest: White spring flowers; Edible red-orange fruit; Interest: Evergreen foliage; Sculptural form Yellow-orange fall color Special Needs: Susceptible to root rot in heavy, wet soil Special Needs: None Pat Breen, Oregon State University Peggy Gaynor; Pat Breen, Oregon State University (cones)

Austrian Pine Evergreen Tree Japanese Black Pine Evergreen Tree (Pinus nigra) (Pinus thunbergiana) Mature Size: 40ʼ-50ʼ height by 20ʼ-25ʼ spread Mature Size: 50ʼ-100ʼ height by 30ʼ-60ʼ spread Shape: Dense pyramidal; Moderate to slow growing Shape: Broad cone to irregular & spreading; Fast growing Environment: Adaptable to conditions Environment: Adaptable to conditions Interest: Evergreen needle foliage; Strong form Interest: Evergreen needle foliage; Irregular form Special Needs: None Special Needs: Option - May be pruned to sculptural form Pat Breen, Oregon State University Pat Breen, Oregon State University

Vine Maple Deciduous Screening Redtwig Dogwood Deciduous Screening Shrub (Acer circinatum) (Cornus stolonifera) Mature Size: 15ʼ height by 10ʼ-15ʼ spread Mature Size: 6ʼ-15ʼ height by 8ʼ-15ʼ spread Shape: Multi-stemmed; Understory tree or shrub Shape: Large spreading, twiggy; Pacific NW native Environment: Shade; Moist soil; Pacific NW native Environment: Adaptable; Prefers moist conditions Interest: Branching pattern; Orange-red fall color Interest: White flowers; Red branches; Red fall color Special Needs: Water in hot, dry weather Special Needs: Option - Prune old branches to ground to control size & encourage brighter red new growth Pat Breen, Oregon State University Pat Breen, Oregon State University

Yellowtwig Dogwood Deciduous Screening Shrub Isanti Redtwig Dogwood Decid. Screening Shrub (Cornus stoloniferaʼFlavirameaʼ) (Cornus stolonifera ʻIsantiʼ) Mature Size: 6ʼ-15ʼ height by 8ʼ-15ʼ spread Mature Size: 3ʼ-4ʼʼ height by 4ʼ-6ʼ spread Shape: Large spreading, twiggy Shape: Compact spreading, twiggy; Low screen Environment: Adaptable; Prefers moist conditions Environment: Adaptable; Prefers moist conditions Interest: White flowers; Yellow branches; Red fall color Interest: White flowers; Red branches; Red fall color Special Needs: Option - Prune old branches to ground to Special Needs: Option - Prune old branches to ground to control size & encourage brighter yellow new growth encourage brighter red new growth Pat Breen, Oregon State University Pat Breen, Oregon State University

Diane Witchhazel Deciduous Screening Shrub Oakleaf Hydrangea Deciduous Screening Shrub (Hamamelis x intermedia ʻDianeʼ) () Mature Size: 10ʼ height by 10ʼ spread Mature Size: 6ʼ height by 6ʼ spread Shape: Upright, spreading; Understory tree or shrub Shape: Broad, rounded shrub Environment: Sun to light shade; Prefers moist soil Environment: Prefers moist, rich, well-draining soil Interest: Red late winter flowers; Orange-red fall color Interest: Oak-shaped foliage; White flower clusters Special Needs: Water in hot, dry weather Special Needs: Water in hot, dry weather; Option - Prune to ground in February to keep at 3ʼ height Pat Breen, Oregon State University ©Br.Alfred Brosseau, St.Maryʼs College; Christopher Christie (inset) Brosseau, St.Maryʼs ©Br.Alfred

Mock Orange Decid. Screening Shrub Red-Flowering Currant Decid. Screening Shrub ( lewisii & ornamental varieties) (Ribes sanguineum) Mature Size: 6ʼ height by 6ʼ spread Mature Size: 4ʼ-8ʼ height by 4ʼ-6ʼ spread Shape: Rounded, arching branches; P. lewisii, Pacific NW Shape: Upright branching; Pacific NW native native Environment: Adaptable to range of conditions Environment: Adaptable to range of conditions Interest: Pink-red spring flowers; Edible blue-black berries Interest: Fragrant white spring flowers Special Needs: May need water in hot, dry weather Special Needs: Option - Prune out old wood after bloom Peggy Gaynor Pat Breen, Oregon State University

Peafruit Rose Deciduous Screening Shrub Pavement Rugosa Rose Decid. Screening Shrub (Rosa pisocarpa) (Rosa rugosa ʻPavement cultivarsʼ?) Mature Size: 5ʼ-6ʼ height by 4ʼ-5ʼ spread Mature Size: 3ʼ-4ʼ height by 4ʼ-6ʼ spread Shape: Upright spreading; Pacific NW native Shape: Round, spreading Environment: Prefers moist conditions Environment: Adaptable to range of soils & conditions Interest: Pink spring flowers; Red rose hips Interest: Fragrant spring flowers; Large edible red rose Special Needs: May need water in hot, dry weather hips; Crinkly textured leaves Special Needs: None Pat Breen, Oregon State University Pat Breen, Oregon State University

Salmonberry Deciduous Screening Shrub Blueberry Deciduous Screening Shrub (Rubus spectabilis) (Vaccinium corymbosum fruiting varieties) Mature Size: 5ʼ-8ʼ height by 5ʼ-8ʼ spread Mature Size: 5ʼ-6ʼ height by 4ʼ-5ʼ spread Shape: Upright, spreading; Pacific NW native Shape: Upright to spreading; Twiggy Environment: Prefers shade & moist conditions Environment: Sun to light shade; Cool, moist soil Interest: Purple-red spring flowers; Edible pinkish fruit Interest: Edible blueberries; Yellow-red fall color Special Needs: Water in hot, dry weather Special Needs: Water for larger berries; Mulch well Peggy Gaynor Pat Breen, Oregon State University

Strawberry Tree Broadleaf Evergreen Shrub Compact Strawberry Tree Brdlf. Evergr. Shrub (Arbutus unedo) (Arbutus unedo ʻCompactaʼ) Mature Size: 8ʼ- 15ʼ height by 8ʼʼ-15ʼ spread Mature Size: 5ʼ- 8ʼ height by 5ʼ-8ʼ spread Shape: Round, irregular branching; Slow growing screen Shape: Upright to round; Slow growing; Screening shrub Environment: Adaptable to range of soils & conditions Environment: Adaptable to range of soils & conditions Interest: White spring flowers; Edible red fruit; Shredding Interest: White spring flowers; Edible red fruit; Shredding bark; Glossy evergreen leaves bark; Glossy evergreen leaves Special Needs: Option – Prune to train as small tree; Special Needs: None Stake if top-heavy; Prune suckers Pat Breen, Oregon State University Pat Breen, Oregon State University

White Rockrose Broadleaf Evergreen Shrub PJM Rhododendron Broadleaf Evergreen Shrub (Cistus hybridus) (Rhododendron ʻPJMʼ) Mature Size: 3ʼ-4ʼ height by 4ʼ-5ʼ spread Mature Size: 4ʼ -5ʼ height by 4ʼ-5ʼ spread Shape: Spreading to round; Low screening shrub Shape: Upright spreading to round; Screening shrub Environment: Adaptable; Prefers sun & well-drained soil Environment: Adaptable to range of soils & conditions Interest: White spring flowers; Crinkly gray-green, fragrant Interest: Lavender-pink early spring flowers; Evergreen evergreen leaves leaves turn mahogany in winter Special Needs: None; Option – prune out old stems Special Needs: Water in hot, dry weather; Mulch well Pat Breen, Oregon State University Pat Breen, Oregon State University; Peggy Gaynor (inset)

Evergreen Huckleberry Broadlf. Evergreen Shrub Kelsey’s Dwarf Dogwood Low Deciduous Shrub (Vaccinium ovatum) (Cornus stolonifera ʻKelseyiʼ) Mature Size: 5ʼ- 8ʼ height by 5ʼ-6ʼ spread Mature Size: 2ʼ height by 3ʼ spread Shape: Upright spreading; Screening shrub Shape: Spreading, mounded Environment: Prefers partial shade; Pacific NW native Environment: Adaptable; Prefers moist conditions Interest: White spring flowers; Edible blue-black berries; Interest: Bright red twigs; Neat dwarf form Glossy evergreen leaves Special Needs: May need water in hot, dry weather Special Needs: Water in hot, dry weather; Mulch well Pat Breen, Oregon State University Pat Breen, Oregon State University (inset) Peggy Gaynor;

Tangerine Potentilla Low Deciduous Shrub Snowberry Low Deciduous Shrub (Potentilla fruticosa ʻTangerineʼ) (Symphoricarpos albus) Mature Size: 2ʼ-3ʼ height by 3ʼ spread Mature Size: 3ʼ height by 3ʼ-4ʼ spread Shape: Spreading, arching; Twiggy mound Shape: Upright, spreading; Pacific NW native Environment: Prefers full sun & well-drained soil Environment: Adaptable to range of soils & conditions Interest: Yellow-orange summer flowers Interest: Pink spring flowers; White winter berries Special Needs: None Special Needs: None Peggy Gaynor Pat Breen, Oregon State University

Kinnikinnik Broadleaf Evergreen Ground Cover Rose Queen Epimedium Brdlf. Evergr. Grd. Cover (Arctostapylos uva-ursi) (Epimedium grandiflorum ʻRose Queenʼ) Mature Size: 6”-12” height by 4ʼ – 6ʼ+ spread Mature Size: 1ʼ height by 3ʼ – 4ʼ+ spread Shape: Prostrate, spreading; Pacific NW native Shape: Upright spreading, mounding Environment: Adaptable; Prefers sun & well-drained soils Environment: Prefers shade & moist conditions Interest: White to pink spring flowers; Edible red berries; Interest: Crimson with white spring flowers; Heart-shaped Bright, glossy evergreen leaves evergreen leaves; New growth bronze-pink Special Needs: Water in hot, dry weather; Mulch well Special Needs: Water in hot, dry weather; Mulch well Pat Breen, Oregon State University Pat Breen, Oregon State University

Kewensis Wintercreeper Brdlf. Evergr. Grd. Cover Salal Broadleaf Evergreen Ground Cover (Euonymous fortunei ʻKewensisʼ) (Gaultheria shallon) Mature Size: 3ʼ height maximum by 4ʼ – 6ʼ+ spread Mature Size: 2ʼ-4ʼ height by 4ʼ+ spread Shape: Dense spreading, climbing or mounding Shape: Upright, spreading; Pacific NW native Environment: Adaptable to range of soils & conditions Environment: Adaptable; Prefers summer shade, moisture Interest: Fine-textured, dark evergreen leaves Interest: White spring flowers; Edible blue-black berries Special Needs: Mulch well Special Needs: Water in hot, dry weather to establish Pat Breen, Oregon State University Pat Breen, Oregon State University

Creeping Mahonia Broadlf. Evergr. Ground Cover Sword Fern Broadleaf Evergreen Ground Cover (Mahonia repens) (Polystichum munitum) Mature Size: 2ʼ-3ʼ height by 3ʼ-4ʼ+ spread Mature Size: 2ʼ- 3ʼ height by 2ʼ-3ʼ spread Shape: Upright, open, spreading Shape: Upright arching, spreading fronds; Pacific NW Environment: Adaptable to range of soils & conditions; native Pacific NW native Environment: Adaptable; Prefers shade, moist conditions Interest: Yellow spring flowers; Edible blue berries; Dull Interest: Evergreen fern fronds blue green evergreen leaves turn bronze in winter Special Needs: Water in hot, dry weather; Mulch well Special Needs: Mulch well Peggy Gaynor Peggy Gaynor

Gaura Perennial Cranesbill Perennial (Gaura lindheimeri & varieties) (Geranium pratense & other Geranium species) Mature Size: 2ʼ-4ʼ height by 2ʼ-4ʼ spread Mature Size: 3ʼ height by 3ʼ spread Shape: Open, upright, fine-textured Shape: Spreading mound Environment: Full sun; Drought-tolerant Environment: Sun to light shade; Moist soil Interest: White-pink summer flowers Interest: Blue-purple summer flowers; Shiny lobed leaves Special Needs: Option - Cut spent flower stalks Special Needs: Water throughout summer Peggy Gaynor Peggy Gaynor

Sunrose Perennial Evergreen Shrublet Daylily Perennial (Helianthemum nummularium & varieties) (Hemerocallis hybrids) Mature Size: 6”-12” height by 3ʼ spread Mature Size: 2ʼ-4ʼ height by 2ʼ-4ʼ spread Shape: Low arching, spreading mound Shape: Arching clump of sword-shaped leaves Environment: Full sun; Well-drained soil Environment: Adaptable to range of soils & conditions Interest: Bright colored summer flowers; Fuzzy gray-green Interest: Colorful lily-like summer flowers on tall stems; evergreen leaves Sword-shaped deciduous to evergreen leaves Special Needs: Lightly cover with evergreen branches in Special Needs: Cut spent flower stalks winter; Option – Cut back after flowering for fall bloom Peggy Gaynor Peggy Gaynor

Coral Bells Perennial Purple-Leaved Coral Bells Perennial (Heuchera sanguinea & green-leaved varieties) (Heuchera ʻPlum Puddingʼ & other purple-leaved varieties) Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Shape: Compact mound Shape: Compact mound Environment: Sun to light shade; Moist soil Environment: Sun to light shade; Moist soil Interest: Red to pink spring-summer flowers on tall stems; Interest: Maple-shaped rich bronze to red-purple leaves all Neat scalloped, green leaves year; Tiny pink flowers on tall stems Special Needs: Water throughout summer Special Needs: Water throughout summer Peggy Gaynor Peggy Gaynor

Douglas’ Iris Perennial Evergreen Gladwin Iris Perennial Evergreen (Iris douglasiana) (Iris foetidissima) Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Shape: Upright, spreading clump; Pacific NW native Shape: Upright, spreading clump Environment: Adaptable; Sun to light shade Environment: Adaptable to range of soils & conditions Interest: White to lavender spring flowers; Long shiny Interest: Large red seed capsules; Long evergreen leaves; evergreen leaves Spring flowers subtle Special Needs: Water in hot, dry weather Special Needs: None Peggy Gaynor 4 Nick Kurzenko © 200

Lavender Perennial Evergreen Herb Lupine Perennial (Lavendula angustifolia) (Lupinus species) Mature Size: 2ʼ-3ʼ height by 2ʼ-3ʼ spread Mature Size: 2ʼ-4ʼ height by 2ʼ-4ʼ spread Shape: Round clump or mound; Fine-textured Shape: Loose mound Environment: Full sun; Well-drained soil Environment: Adaptable; Nitrogen-fixing legume Interest: Lavendar summer flowers; Fragrant gray-green Interest: Blue-purple late spring flowers evergreen foliage Special Needs: Susceptible to mildew & aphids; Re-seeds Special Needs: Option – Prune after bloom for neat, compact form Peggy Gaynor 2 Dean Wm. Taylor © 200 2 Dean Wm.

Sedge Wetland Emergent Daggerleaf Rush Wetland Emergent (Carex species) (Juncus ensifolius) Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Mature Size: 6”- 18” height by 1ʼ spread Shape: Upright grass-like leaves; some species are Pacific Shape: Upright iris-like leaves; Pacific NW native NW natives Environment: Moist soil to wet conditions Environment: Moist soil to wet conditions Interest: Flat, dagger-shaped leaves Interest: & seedheads; Some species evergreen Special Needs: Water throughout summer Special Needs: Water throughout summer Peggy Gaynor 3 Steve Matson © 200

Arrowhead Wetland Emergent Small-Fruited Bulrush Wetland Emergent (Sagittaria latifolia) (Scirpus microcarpus) Mature Size: 1ʼ-2ʼ height by 1ʼ-2ʼ spread Mature Size: 1.5ʼ-4ʼ height by 2ʼ-4ʼ spread Shape: Upright arrowhead leaves; Pacific NW native Shape: Upright flat grasslike blades; Pacific NW native Environment: Moist soil to 18” deep water Environment: Moist soil to 18” deep water Interest: White flowers; Arrowhead-shaped leaves Interest: Flower & seed heads; Large, flat leaf blades Special Needs: Water throughout summer Special Needs: Water throughout summer Peggy Gaynor © 2001 Tony Morosco Tony © 2001

Youth-on-Age Wetland Perennial Crocus Perennial Bulb (Tolmiea menziesii) (Crocus species & varieties) Mature Size: 6”-12” height by 1ʼ-2ʼ spread Mature Size: 3”-6” height by 3”-6” spread Shape: Spreading mound; Pacific NW native Shape: Grass-like leaves at base; Upright flower stalk Environment: Shade; Moist soil Environment: Sun to light shade; Well-drained soils Interest: Wide lobed leaves with plantlets on stems Interest: Early spring flowers of many colors Special Needs: Water throughout summer Special Needs: None; Dies back in summer