APPENDIX I WHATCOM COUNTY'S APPROVED PLANT LIST ...

APPENDIX IWHATCOM COUNTY'S APPROVED PLANT LISTWHATCOM COUNTY RIGHTS-OF-WAY PLANT LISTBotanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesSmall Trees - Good for 4' Minimum Planting Strips With Limited SpaceAcer ginnala 'Flame'Amur MapleAcer grandidentatum 'Schmidt'Rocky Mt. Glow MapleAcer griseumPaperbark MapleAcer palmatumJapanese Maple*Acer platanoides 'Globosum'Globe Norway MapleAmelanchier grandafloria'Princess Diane' *Amelanchier x grandafloria'Autumn BrillianceServiceberry'*Cercis canadencsisEastern RedbudCornus kousa 'Chinensis'Chinese Kousa Dogwood*Fraxinus pennsylvanica'Johnson'Leprechaun Ash20 20 red25+ 1525 2020 24 small redintenseredyellow,orange,red20 18 yellowSelect or prune forsingle stem; can bemulti-trunked.Smooth, peeling,cinnamon colorredbark.Hundreds of variedvultivars. Slow growing.Rounded top, andcompact growth.20 15 white bright red Good for limited space20 15 white bright red Reliable bloom.25 30 red yellow20 20 whiteMagnolia x loebneri 20 20reddish toscarlet18 16 yellowlargewhiteyellowBlooms before leavesare out.Most resistant todisease of thedogwoods.A miniature in everyway.Several cultivars.Magnolia grandaflora 'LittleGem' 15 10 white evergreenUseful where largervarieties areinappropriate.Malus 'Adirondack' 18 10 whiteRed fruit. Excellentscab resistance.Malus 'Red Barron' 18 8 red yellowGood for narrowspaces. Red berries.Malus 'Golden Raindrop' 18 13 white yellow Abundant yellow fruit.Parrotia persicaPersian Parrotia30 20ShowystamensyelloworangeredSelect or prune forsingle stem; can bemulti trunked.I-1

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesPrunus 'Frankthrees'Mt. St. Helens Plum20 20 pink Purple foliage.Prunus 'Newport'20 20 light pink reddish Purble red foliage.Newport PlumPrunus cerasifera 'KrauterVesuvius'Flowering PlumPrunus 'Snowgoose'Snow Goose CherryPrinus serrulata 'Amanogawa'Flowering CherryPrunus x yedoensis 'Akebono'Flowing Cherry30 15 pink20 20 white20 6pale pinkdoublebronze25 25 pink yellowMedium Sized Trees - Good for Standard 5' Planting StripsAcer campesireHedge MapleAcer campesire 'Evelyn'Queen Elizabeth MapleAcer truncatum x A,platanoides'Kiethstorm'Norwegian Sunset MapleAcer truncatum x A,platanoidesWarren's Red Pacific SunsetMaple30 30 yellow35 30 yellow25 25 yellow30 25 yellowyelloworange/redyelloworange/redArbutus 'Marina' 25 15 pink evergreenCrataegus crus-galli 'Inermis'Thornless Cockspur HawthornCrataegus x lavaliiLavalle HawthornCrataegus phaenopyrumWashington HawthornKoelreuteria paniculataGoldenrain Tree25 3028 2025 2030 30smallwhitesmallwhitesmallwhitebrightyelloworange toscarletbronzeScarletyellowMagnolia grandiflora 'Victoria' * 25 20 white evergreenMalus 'Tschonoskii' 28 14 white scarletPrunus x hillieri 'Spire' 30 10 pink orange-redPyrus calleryana 'Aristocrat'PearPyrus calleryana 'Autumn Blaze'Pear40 45 white redUpright growth, darkestfoliage of the plums.Upright when young,spreading when older.Particularly usefule forvery narrow plantingstrips.More upright branchingthan most of thespecies.Good substitute forPacific Madrone. Mayexceed 25' in someconditions.Red persistant fruit.Thorns on young trees.Thorny.30 25 white scarlet VigorousMid-summer blooming.Sparce, green fruit;pyramidal.I-2

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesSorbus aucuparia 'Mitchred'Cardinal Royal Mt. Ash35 20 white rust Bright red berries.Sorbus x hybridia30 20 white rustOakleaf Royal Mt. AshStyrax japonicaJapanese Snowbell25 25 white yellowPlentiful, green, 1/2"seeds.Medium to Large Trees - Good for Planting Strips 6' or Wider Not Under Power Lines.Acer freemaniiAutumn Blaze MapleAcer nigrum 'Green Column'Green Column MapleAcer platanoides 'Columnar'Columnar MapleAcer platanoides 'EmeraldQueen'Emerald Queen MapleAcer platanoides 'Parkway'Parkway MapleAcer rubrum 'Bowhall'Bowhall MapleAcer rubrum 'Karpick'Karpick MapleAcer rubrum 'Scarsen'Scarlet Sentinel MapleAcer rubrum'Red Sunset'Acer pseudoplatanus'Atropurpureum'Spaethii MapleAesculus x carnea 'Briottii'Red HorsechestnutCarpinus betulus 'Fastigiata'Pyramidal Euopean Hornbeam50 40 orange50 20yellow toorangeGood close to buildings.40 15 yellow Good close to buildings.50 40 yellow yellow40 25 yellow yellow40 1535+ 2040 2050 4040 3030 35Small redclusterslarge 10"redclustersyellow toorangeyelloworangeyelloworangeOrange torednotsignificant35 25 yellowMay work under veryhigh power lines withapproval.Tolerates poor soil anddrainage. Very hardy.Leaves green on top,purple underneath.Resists heat anddrought better thanother chestnuts.Fagus sylvatica 'Dawyck Purple'Dawyck Purple Beech40 12 Purple foliage.Betula jacquemontiiJacquemontii BirchFraxinus oxycarpa 'Raywood'Raywood AshFraxinus pensylvanica'Platmore'Platmore AshFraxinus americanaAutumn Applause Ash40 30 yellow35 25reddishpurple45 35 yellow40 25 purpleWhite bark makes forgood winter interest.Extremely hardy, maybe seedless.I-3

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesFraxinus pennsylvanica'Urbanite'Urbanite Ash50 40deepbronzeGinko biloba 'Autumn Gold' 45 35 yellowGinko biloba "Princeton Sentry' 40 15 yellow Very narrow growth.Nothofagus antarcticaSouthern BeechOxydendron arboreumSourwoodGleditsia triancanthosShademaster HoneylocustQuercus 'Crimschmidt'Crimson Spire OakQuercus IlexHolley OakPrunus sargentii 'Columnarus'Columnar CherryPrunus cerasifera'Thundercloud'Thundercloud PlumRobinia x ambigua 'Idahoensis'Pink Idaho LocustTilia cordata 'Chancole'Chencelor LindenTilia cordata 'Greenspire'Greenspire LindenAcer saccharum 'Legacy'Legacy Sugar MapleLiquidambar straciflua 'Festival'Festival SweetgumLiquidambar straciflua'Worplesdon'Worplesdon SweetgumLiriodebron tulipfera 'Arnold'Tulip TreeQuecus coccineaScarlet OakQuercus robur 'Fastigiata'Skyrocket OakZelkova serrata 'Greenvase'Green Vase Zelkova50 3535 1245 35white, notnoticablenotnoticablereddishpurpleyellowRugged, twisted,branching, and petitegrowth.consistant and brilliantfall color.do not confuse with'Sunburst'.45 15 Hard to find.20 2035 15 pinkPrune to keep small orleave alone for largergrowth.orange to The cherry with the bestorange-red fall color.20 20 light pink Dark purple foliage.35 25 rose pink yellow Fragrant flowers.30 20notnoticableyellow40 30 yellowish50 3540 2040 25yellow ororange-redPyramidal.Symmetrical, pyramidalform.Limited use wheresugar maple is desiedin standard plantingstips.yellow orLight green foliage.orange-redFinger-like leaf lobing.40 10 yellow Good next to buildings.50 40 red45 1550 40notnoticablepurpleorangeyellowbrownOrangeColumnar variety ofoak.Vigorouus.I-4

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesZelkova serrata 'Village Green'Village Green Zelkova40 38 rusty redLarge Trees - Good for Planting Strips 8' or Wider Not Under Power Lines.Acer saccharum 'Bonfire'Bonfire Sugar MapleAcer saccharum'Commemoration'Commemoration Sugar MapleAcer saccharum 'GreenMountain'Green Mountain Sugar MapleCercidiphyllum japonicumKatsura Tree50 4050 3545 3540 40Fagus sylavatica 50 40Lirodendron tulipiferaTulip TreeNothofagus antarcticaSouthern BeechNyssa sylavaticaTupeloPlatanus x acerifloria 'Liberty'Liberty (Island) planetreeplatanus x acerfloria 'Yarwood'Yarwood PlanetreeQuercus bicolorSwamp White OakQuercus palustris 'Crownright'Crownright OakUlmus 'Homestead'Homestead ElmUlmus 'Pioneer'Pioneer Elm60 30bright Fastest growing sugarorange-red maple.orange toResistant to leaf tatter.orange-redred toorangeyellow toorangeyellow toorangeyellow40 15 ?70+ 20notnoticableapricot tobright red50 45 red50 40yellowgreenishyellowbrownFast growing tree.handsomely chunkybark.High resistance topowdery mildew.100 80 varies Shaggy peeling bark.80 4060 3560 50notnoticablenotnoticableyellowyellowMore upright form ofPin Oak.Resistant to Dutch Elmdisease.Trees Not Allowed within County Rights-of-waySilk tree, Mimosa, White Birch, Weeping White Birch, Catalpa, Cottonwood, Crataegus oxyacanthaor C. laevigata, Honey Locust, Black or English Walnut, Sweetgum, London Plane, Sycamore,Pin Oak, Pagoda Tree, American Elm, Chinese Elm, Siberian Elm, Conifer Trees, Boxelder, SilverMaple, Big Leaf Maple, Red Alder, Ailanthus altissima, Fruiting apples, Fruiting cherries, Fruitingpears, Poplars, Black Locust, and all Willow Trees.I-5

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesShrubsArctostaphylosManzanita2-15 20 variesbright redberriesShiny dark green leavesturn maroon in fall.Berberis verruculosa4 4-6Warty BarberryCalluna vulgarisLarge selection of cold3 3 variesScotch Heatherhardy varieties.Avoid larger speciesCamellia 1-15 1-10 varies evergreenover 15' in heighth.CaryopteruslavenderCut back nearly to3-8 2-5Blue Spirea or Bluebeardblueground in spring.Chamaecyparis obtusaSlender, soft, and3-20 4False Cypressdense.Cotoneaster 1-20 3-20 variesElaeagnus commutataSilverberryEuonymous alata 'Compacta'Compact Burning Bush*Euonymous japonicaEvergreen EuonymousForsynthia intermedia 'Karl Sax'Karl Sax ForsynthiaJuniperusJuniper*Kalmia latifoliaMountain Laurel*Kerria japonica 'Plentifolia'Plentifolia KerriaMahonia aquifoliumOregon Grape*Nandina domesticaHeavenly Bamboo*12 6-8tinyfragrantbranchesturn redsilveryberries4-6 4-6 vibrant red8 4-5Red to purple bark,many varieties, selectcorrect size for location.Extremely cold hardy.7 6 yellow Profuse spring bloom.1-10 3-15 evergreenSelect correct sizespecies for location.6-8 4 white Glossy, leathery leaves.8 6 yellow2-6 3Osmanthus 4-8 3-6Picea abies 'Nidiformis'Birdis Nest SprucePieris japonicaAndromedaPinus MugoSwiss Stone Pine or Mugo Pine*Potentilla froticosaCinquefoil*smallwhiteblueberriesDouble yellow roaselikeflowers, stems staygreen in winter.Very Hardy6-8 4 Excellent fall color.smallwhiteevergreenSelect cold hardyspecies only.3 3 Very Compact.8 44-10 3-64 3whiteclustersyellow orwhiteBushy, and can bedense.I-6

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesPrunus laurocerasus 'OttoLuyken'Otto Luyken LaurelPyracanthaFirethorn5 4whiteclustersHardy and neat.1-5 5-20 white red berriesevergreen.Rhododendron* 3-6 3-6 varietyRibesCurrantRosmarinus officinalisRosemarySantolinaLavenderCotton1-12 2-51-4 1-8white toredblue toviolet2-3 3-4 yellowSpiraea bumalda 2-3 4 variesTsuga canadensis 'Sargenti'Sargent Weeping HemlockViburnun 3-15 3-6 variesCompact and spreadingvarieties available,Evergreen, goodfoliage, and brightflowers.Select cold hardyred berriesspecies only.Dark green needle-likeevergreenleaves, fragrant.Attractive whitish grayfoliage.Flowers from june tofall.2-3 4 Graceful form.Huge flower clusters,many varieties.Groundcovers and Small Shrubs - Under 2'Achillea tomentosaWooly YarrowAntennaria dioicaPussy ToesArctostaphylos mediaManzanita MediaArctostaphylos uva ursiBearberry or Kinnikinnick*Arcyotheca calendulaCape WeedArtemesia caucasicaSilver SpreaderBaccharis pilularisDwarf Coyote Bush1 3-5yellow orcream1 2 pink2 101 151 1 yellow0.5 2 yellow2 6Camellia sasanqua 1 1CeanothusWild LilacCerastium tomentosumSnow-in-SummerCotoneasterBearberry Cottoneaster*1.5 2white toredblue toviolet1 5+ white1.5 6-10 whitebright redbranchesLeavesturn redbright redberriesFlower heads needmowed in fall.Foliage is furry, cantolerate extreme cold.leathery dark greenleaves, fast growing.Many varietiesavailable, great forslopes.Grey green foliage, diesback in winter.Silky silver foliage,tolerates extreme heatand cold.Bright green mat, needscut back once per year.Evergreen, glossy 2-3"leaves.Stay with local varieties.Silver gray foliagecovered with whiteflowers.Shiny dark green leavesturn maroon in fall.I-7

Botanical Name Height Spread Fall Comment/Common Name in feet in feet Flowers Color NotesDryas drummondii 0.5 1 yellowOrnamental seedcapsules with silverywhite tails.Hardy, gray-green twigsGenista hispanica, lydia, pilosa,with small leaves.& sagittalis2 2 yellowVancouver Gold goodSpanish or Dwarf Broomvariety.Hedera helixEnglish Ivy*JuniperusJuniper-Carpet, Creeper, orSpreaderOenotheraEvening PrimrosePenstemon davidsonii, rupicolaBeard TonguePlygonium affineKnotweedPotentillaCinquefoil *Pyracantha augustifolia'Gnome'*Rosmariunus officinalisRosemary 'Prostratus'Santolina chamaecyparissusLavender Cotton1.5 10-152 5-81 2 varies2 1.5 varies2 4 rose2 2-4 Varies1 4 white2 4-8blue toviolet2 3 yellowSaponaria ocymoides 1 3 pinkSedumStonecropTeucrium chamaedrys orpostratiumGermanderThymusThyme* - Highly recommended species.2 1-5 varies1 2-32 1-2red-purpleor whitewhite topurpleleaves turnbronzeorangeberriesMany varieties. Can beinvasive.Many varieties of lowgrowing junipers.May die back in severewinters, come backstrong.Evergreen shrub,tolerates cold and heat.Informal groundcover.Smothers weeds well,may turn brown insevere winters.One of the hardiest.Dark green needle-likeleaves.Attractive whitish grayfoliage.Trailing habit, darkgreen oval leaves.Use local varieties, cutflower stalks in fall.Toothed, dark greenleaves, water untilestablished.Many varieties.I-8