b. Are detrimental to existing vegetation, or to the functions and values where located, or to the character of the area where planted; or

Transcription

1 APPENDIX D LAKE OSWEGO MASTER PLANT LIST The Lake Oswego Master Plant List identifies plants appropriate for landscaping in specific areas, i.e., resource areas, street trees, West Lake Grove Overlay District, or for other purposes as established in this Code or elsewhere in the Lake Oswego Code, that either identifies plants that: a. Are adapted to local soils and growing conditions, provide food and shelter for native wildlife, and generally do not require fertilizers or pesticides, and do not require long-term irrigation, which can increase erosion and sedimentation; or b. Are detrimental to existing vegetation, or to the functions and values where located, or to the character of the area where planted; or c. Meet the requirements of plants as specified in the particular sections of this Code, or elsewhere in the Lake Oswego Code. This plant list is divided into the following subsections: 1. Native plants. 2. Invasive plants. 3. Street trees prohibited. 4. Street trees approved (applicable to LOC c, Old Town design standards only). 5. Solar friendly plants (see "Solar Friendly Trees Report" dated April 1987). 1. Native Plants The plants below are native to the Willamette Valley. They are adapted to local climate and soils. Planted in the right location, they should thrive with little or no maintenance. Scientific Name Common Name Native Tall Shrubs/Small Trees Acer circinatum Amelanchier alnifolia Berberis (Mahonia) aquifolium Cornus stolonifera Vine maple Western serviceberry/saskatoon Tall Oregon grape Redosier dogwood 1

2 Scientific Name Common Name Native Tall Shrubs/Small Trees Corylus cornuta Crataegus douglasii Euonymus occidentalis Holodiscus discolor Lonicera involucrata Malus fusca Oemleria cerasiformis Philadelphus lewisii Physocarpus capitatus Prunus virginiana Ribes sanguineum Rosa gymnocarpa Rosa nutkana Rosa pisocarpa Rubus parviflorus Rubus spectabilis Scientific Name Hazelnut Douglas hawthorn Western wahoo Oceanspray Black twinberry Western crabapple Indian plum Mock orange Pacific ninebark Chokecherry Red-flowering currant Baldhip rose Nootka rose Clustered wild rose Thimbleberry Salmonberry Common Name Native Trees Abies grandis Arbutus menziesii Acer macrophyllum Alnus rubra Cornus nutallii Fraxinus latifolia Pinus contorta Pinus ponderosa Grand fir Madrone Big-leaf maple Red alder Pacific dogwood Oregon ash Shore pine Ponderosa pine 2

3 Populus trichocarpa Prunus emarginatus Pseudotsuga menziesii Quercus garryana Rhamnus purshiana Salix fluviatilis Salix lasiandra Salix scouleriana Salix sitchensis Taxus brevifolius Thuja plicata Tsuga heterophylla Sambucus cerulea Sambucus racemosa Spiraea douglasii Symphoricarpos albus Vaccinium parvifolium Vaccinium ovatum Black cottonwood Bitter cherry Douglas fir Oregon white oak Cascara Columbia River willow Pacific willow Scouler s willow Sitka willow Western yew Western red cedar Western hemlock Blue elderberry Red elderberry Douglas spiraea Snowberry Red huckleberry Evergreen huckleberry Native Low Shrubs Berberis (Mahonia) nervosa Gaultheria shallon Rubus leucodermis Low Oregon grape Salal Blackcap Native Herbaceous Flowering Plants Achillea millefolium Achlys triphylla Alisma plantago-aquatica Anaphalis margaritacea Anemone deltoidea White yarrow Vanillaleaf American water plantain Pearly-everlasting Western white anemone 3

4 Anemone oregana Aquilegia formosa Arctostaphylos uva-ursi Asarum caudatum Aster chilensis Brodiaea congesta Brodiaea coronaria Brodiaea howellii Brodiaea hyacintha Calypso bulbosa Camassia leichtlinii Camassia quamash Campanula scouleri Cornus canadensis Cryptantha intermedia v. grandiflora Cynoglossum grande Disporum hookeri Disporum smithii Eriophyllum lanatum Erythronium oregonum Fragaria vesca Fragaria virginiana Geum macrophyllum Heracleum lanatum Hydrophyllum tenuipes Iris tenax Lilium columbianum Lonicera ciliosa Oregon anemone Red columbine Kinnikinnick Wild ginger Hall s aster Northern Saitas Harvest brodiaea Howell s brodiaea Hyacinth brodiaea Fairy slipper Leichtlin s camas Common camas Scouler s bellflower Bunchberry Common forget-me-not Pacific hound s-tongue Hooker fairy-bell Fairy lantern Woolly sunflower Giant fawn lily Wild strawberry Virginia strawberry Oregon avens Cow-parsnip Pacific waterleaf Oregon iris Columbia lily Trumpet vine 4

5 Lupinus bicolor Lupinus polyphyllus Lysichitum americanum Mimulus guttatus Montia parvifolia Montia perfoliata Two-color lupine Bigleaf lupine Skunk cabbage monkeyflower Little-leaf montia Miner s lettuce Native Grasslike: grass, sedge, rush Agrostis exarata Agrostis oregonensis Agrostis scabra Alopecurus aequalis Alopecurus geniculatus Beckmania syzigachne Bromus carinatus Bromus sitchensis Bromus vulgaris Carex aperta Carex densa Carex deweyana Carex hendersonii Carex obnupta Carex stipata Deschampsia caespitosa Eleocharis ovata Eleocharis palustris Elymus glaucus Festuca idahoensis Festuca occidentalis Spike bentgrass Oregon bentgrass Hair/rough bentgrass Shortawn foxtail Water foxtail Slough grass California/mountain brome Alaska brome Columbia brome Columbia sedge Dense sedge Dewey s sedge Henderson s sedge Slough sedge Sawbeak sedge Tufted hairgrass Ovoid spike-rush Common spike-rush Blue wildrye Bunchgrass fescue Western fescue 5

6 Festuca rubra Glyceria occidentalis Hierocloe occidentalis Hordeum brachyantherum Juncus balticus Juncus effusus Juncus ensifolius Juncus tenuis Leersia oryzoides Scirpus acutus Scirpus microcarpus Scirpus validus Typha latifolia Red fescue Western mannagrass California sweetgrass Meadow barley Baltic rush Common (soft) rush Daggerleaf rush Slender rush Rice cutgrass Hardstem bulrush Small-flowered bulrush Softstem bulrush Common cattail Ferns Adiantum pedantum Athyrum felix-femina Blechnum spicant Gymnocarpium dropteris Polypodium glycyrrihiza Polystichum munitum Pteridium aquilinum Thelypteris nevadensis Northern maidenhair fern Ladyfern Deer fern Oak fern Licorice fern Swordfern Bracken fern Wood fern 6

7 2. Invasive Plants These plants tend to dominate plant communities, crowding out other native plants. They generally have low value to wildlife, and some are considered harmful to humans. These plants are not good choices for landscaping. They may not be planted in resource areas. This prohibition also applies to subspecies and cultivars. Scientific Name Common Name Shrubs Cytisus scoparius Ilex aquifolium Prunus laurocerasus Rhus diversiloba Scotch broom English holly English/Portuguese laurel Poison oak Herbaceous Plants Buddleia davidii Carduus alanthoides, Carthamus baeticus, C. lanatus, Cirsium vulgare, C. arvense Geranium lucidum, G. robertianum Hypericum perforatum Lythrum salicaria Vinca major and v. minor Butterfly bush Thistles (plumless, smooth distaff, woolly distaff, bull, Canadian) Shining Crane s-bill, Herb Robert St. John s wort Purple loosestrife Periwinkle/vinca Vines Clematis ligusticifolia Clematis vitalba Convolvulus sepium Hedera genus, including all cultivars of hedera helix and hedera hibernica Polygonum sachalinense and P. cuspidatum Rubus armenicus Rubus ursinus Western clematis Traveler s joy Morning glory Ivy, including English ivy Giant knotweed, Japanese knotweed Himalayan blackberry Trailing blackberry Grasses 7

8 Phalaris arundinacea various genera Scientific Name Reed canarygrass Running-type bamboo Common Name 8

9 3. Street Trees Prohibited The following trees are prohibited as street trees, except those cultivars that do not have the characteristics identified by its species below: SCIENTIFIC NAME COMMON NAME Acer macrophyllum Leaves block drainage, roots buckle sidewalks Acer negundo Insects, weak wooded Acer rubrum Shallow rooted Acer saccharinum Shallow rooted, weak wooded Aesculus hippocastanum Messy fruits Betulus species Insects, weak wooded Carya species Fruits cause litter and safety problems Catalpa species Seed pods cause litter problems Corylus species Fruits cause litter and safety problems Crataegus species Thorns, fruits cause litter and safety problems Fraxinus species Seed pods cause litter problems Gleditsia triacanthos Seed pods cause litter problems Big-leaf maple Box elder Red maple Silver maple Common horsechestnut Birches Hickories Catalpas Filberts Hawthorns Ashes Honey locust (species) (does not include horticultural variants) 9

10 SCIENTIFIC NAME COMMON NAME Juglans species Fruits cause litter problems Morus species Fruits cause litter and safety problems Populus species Weak wooded, shallow roots Robinia species Weak wooded, suckers Salix species Weak wooded, shallow roots Ulmus fulva Insects, weak wooded, shallow roots Ulmus pumila Weak wooded, shallow roots Walnuts Mulberries Poplars Locusts Willows Slippery elm Siberian elm 10

11 4. Approved Street Trees Old Town Neighborhood Design Applicable to Old Town design standards, LOC See LOC b. TREES FOR PLANTING STRIP SIZE UP TO 4 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Allegheny Serviceberry Amelanchier laevis 25' 15' Upright Oval White Clusters Orange Purplish Blue Pyramidal Serviceberry Amelanchier canadensis Pyramidalis 30' 12' Very Upright Dark White Racemes Brilliant Reds and Orange Maroon Purple Heavy Fruits Lavalle Hawthorn Crataegus X Lavellei 30' 20' Upright to Vase Dark White Clusters Bronze Orange to Red Crimson Cloud Hawthorn Crataegus laevigata Crimson Cloud 25' 18' Oval Glossy Bright Red White Centers Bright Red Flowering Ash Fraxinus ornus 30' 15' Pyramidal to Round Medium Off White Heavily Scented Columnar Goldenrain Koelreuteria paniculata fastigiata 30' 6' Narrow Fastigiate Pods Goldenchain Laburnum vossi 30' 20' Upright to Vase Racemes Blireiana Plum Prunus X Blireiana 20' 20' Round Purple- Bright Pink Reddish- Bronze 11

12 TREES FOR PLANTING STRIP SIZE UP TO 4 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Newport Plum Prunus cerasifera Newport 20' 20' Oval to Round Dark Purple Light Pink Reddish Japanese Tree Lilac Syringa reticulate 25' 15' Pyramidal White Panicle Brown Trident Maple Acer buergeranum 25' 20' Oval to Round Dark Orange Paperbark Maple Acer griseum 30' 20' Round Above and Silvery Under Bright Red Orange Amur Maple Acer ginnala 20' 20' Upright Round Hedge Maple Acer campestre Glorybower Tree Clerodendrum trichotomum Rocky Mountain Glow Maple Acer grandidentatum Schmidt 25' 25' Round Dark 20' 20' Round Dark White Fragrant Clusters 25' 15' Oval Dark Bright Red TREES FOR PLANTING STRIP SIZE 4 FEET TO 5-1/2 FEET Blue TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Queen Elizabeth Maple Acer campestre Queen Elizabeth 35' 30' Upright Dark 12

13 TREES FOR PLANTING STRIP SIZE 4 FEET TO 5-1/2 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Paperbark Maple Acer griseum 30' 20' Round Above and Silver Under Bright Red- Orange Chinese Dogwood Cornus kousa chinensis 30' 30' Round White Red Red Pink September Goldenrain Koelreuteria paniculata September 30' 25' Flat Topped Open Red Bud Cercis canadensis 20' 25' Spreading Medium Pink American Hophornbeam Ostrya virginiana 35' 25' Oval Medium Newport Plum Prunus cerasifera Newport 20' 20' Oval to Round Dark Purple Light Pink Red Capital Pear Pyrus calleryana Capital 35' 12' Columnar Medium White Clusters Reddish Purple Chanticleer Pear Pyrus calleryana Glen s Form 40' 15' Pyramidal Glossy White Clusters Orange Red Rocky Mountain Glow Maple Acer grandidentatum Schmidt 25' 15' Oval Dark Bright Red Japanese Stewartia 40' 20' Pyramidal Dark White Dark Red 13

14 TREES FOR PLANTING STRIP SIZE 4 FEET TO 5-1/2 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Stewartia pseudocamellia Rancho Linden Tilia cordata Rancho Orange Center 45' 20' Pyramidal Dark Fragrant Chancellor Linden Tilia cordata Chancellor Lavalle Hawthorn Crataegus X Lavellei 35' 20' Pyramidal Dark 30' 20' Upright Dark White Bronze Red Red Flowering Ash Fraxinus ornus 30' 15' Pyramidal to Round Medium Off White Fragrant Pyramidal Hornbeam Carpinus betulus fastigiata 35' 20' Broadly Oval Dark Armstrong II Red Maple Acer rubrum Armstrong 45' 15' Narrow Fastigiate Light Orange- Red Gerling Red Maple Acer rubrum Gerling 35' 20' Pyramidal Orange- Red Saratoga Ginkgo Ginkgo biloba Saratoga 30' 30' Compact Spreader ish- Gold Columnar Sargent Cherry Prunus sargentii columnaris 30' 10' Fastigiate Deep Pink Orange- Red Glorybower Tree 20' 20' Round Dark White Blue- 14

15 TREES FOR PLANTING STRIP SIZE 4 FEET TO 5-1/2 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Clerodendrum trichotomum Fragrant Clusters Globe Sugar Maple Acer saccharum globosum 15' 20' Round Medium and Orange Globe Serviceberry Amelanchier canadensis oblongifolia 20' 20' Round White Bright - Red Maroon Purple Saucer magnolia Magnolia soulangiana 20' 20' Upright- Rounded Red/White Brown TREES FOR PLANTING STRIP SIZE 6 FEET TO 8 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Urbanite Ash Fraxinus pennsylvanica Urbanite 50' 40' Broadly Pyramidal Lustrous Bronze Marshall Ash Fraxinus pennsylvanica lanceolata 50' 40' Broadly Oval Dark Skyline Ash Fraxinus americana Skyline 45' 35' Oval Medium Orange Red European Hornbeam Carpinus betulus 50' 35' Oval to Round Dark Gold Hackberry Celtis occidentalis 45' 35' Oval Dark 15

16 TREES FOR PLANTING STRIP SIZE 6 FEET TO 8 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Katsura Tree Cercidiphyllum japonicum Sourwood Oxydendrum arboreum 40' 35' Oval Bluish to Scarlet 50' 25' Pyramidal White Brilliant Scarlet Golden Macho Cork Tree Phellodendron amurense Macho Tricolor Beech Fagus sylvatica Rosed Marginata wood Claprastis lutea 40' 30' Broadly Vase Medium 40' 30' Broadly Oval Purple, Light Pink Border 40' 35' Round - to Bright White Fragrant Clusters Orange to Skyline Honeylocust Gleditsia triacanthos Skyline 50' 35' Broadly Pyramidal Medium Golden Shademaster Honeylocust Gleditsia triacanthos Shademaster Scarlet Oak Quercus coccinea 45' 35' Vase Dark 50' 40' Broadly Oval Glossy Scarlet Glenleven Linden Tilia cordata Glenleven 45' 30' Pyramidal Medium Halka Zelkova 45' 30' Vase Medium 16

17 TREES FOR PLANTING STRIP SIZE 6 FEET TO 8 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Zelkova serrata Halka Globe Sugar Maple Acer saccharum globosum 15' 20' Round Medium and Oranges Saratogoa Ginkgo Ginkgo biloba Saratoga Red Sunset Red Maple Acer rubrum Franksred 30' 30' Round Gold 45' 35' Oval Dark Orange Red October Glory Maple Acer rubrum October Glory 40' 35' Broadly Oval Medium Red to Purple Embers Red Maple Acer rubrum Embers 50' 40' Open Bright Red Saucer magnolia Magnolia soulangiana 20' 20' Upright- Rounded Red/White Brown * Douglas Fir, Pseudotsuga menziesii Lodgepole Pine Pinus contorta 100' Dark Evergreen 100' Dark Shore Pine Pinus contorta var. contorta 25' Upright- Irregular Dark Evergreen * Western Red Cedar 100' + Pyramidal Evergreen 17

18 TREES FOR PLANTING STRIP SIZE 6 FEET TO 8 FEET TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Thuja plicata * Grand Fir Abies grandis Noble Fir, Abies procera Sitka Spruce, Picea sitchensis 100' + Dark Evergreen 90' Bluish Evergreen Evergreen * Western Hemlock, Tsuga heterophylla 100' Narrow- Pyramidal Evergreen Incense Cedar, Libocedrus decurrens 90' Narrow- Pyramidal Dark Evergreen * Tree is on the Native Plants List (subsection (1) of this listing). TREES FOR PLANTING STRIP SIZE 8-1/2 FEET AND LARGER TREE SPECIES HEIGHT SPREAD STRUCTURE FOLIAGE FLOWERS FALL COLOR FRUIT Catalpa Catalpa speciosa 75' 50' Round White Katsura Tree Cercidiphyllum japonicum 40' 35' Oval Bluish to Scarlet Sourwood Oxydendrum arboretum 50' 25' Pyramidal White Brilliant Scarlet (Ord. 2732, Amended, 02/21/2017; Ord. 2579, Repealed and Replaced, 03/20/2012) Golden 5. Solar Friendly Trees See "Solar Friendly Trees Report," dated April (Ord. 2579, Repealed and Replaced, 03/20/2012) 18