Sometimes plants used in landscapes are actually invasive plants and noxious weeds which will crowd out native plants. Avoid planting these plants. It is illegal to plant or transport plants which are listed as Oregon Noxious Weeds.
Trees Ailanthus altissima Tree of Heaven Crataegus monogyna Oneseed Hawthorn Elaeagnus angustifolia Russian Olive Oregon Noxious Weed Shrubs Buddleia davidii Butterfly Bush Oregon Noxious Weed Buddleia variabilis Butterfly Bush Cytisus scoparius Scotch Broom Oregon Noxious Weed Cytisus striatus Portuguese Broom Oregon Noxious Weed Daphne laureola Spurge Laurel Oregon Noxious Weed Genista monspessulana French Broom Oregon Noxious Weed Ilex aquifolium English Holly Oregon Noxious Weed Polygonum cuspidatum Japanese Knotweed Oregon Noxious Weed Polygonum sachalinense Giant Knotweed Oregon Noxious Weed Polygonum polystchyum Himalayan Knotweed Oregon Noxious Weed Rubus armeniacus Armenian Blackberry Oregon Noxious Weed Rubus discolor Himalayan Blackberry Oregon Noxious Weed Rubus procerus Himalayan Blackberry Oregon Noxious Weed Spartium junceum Spanish Broom Oregon Noxious Weed Tamarix ramosissima Tamarisk, Salt Cedar Oregon Noxious Weed Ulex europaeus Gorse Oregon Noxious Weed Groundcovers and Vines Clematis vitalba Old Man’s Beard Oregon Noxious Weed Hedera helix English Ivy Oregon Noxious Weed Hedera hibernica Irish Ivy Oregon Noxious Weed Annuals and Perennials Centaurea cyanus Bachelor’s Buttons, Cornflower Oregon Noxious Weed Centaurea macrocephala Bighead Knapweed Oregon Noxious Weed Centaurea pratensis Meadow Knapweed Oregon Noxious Weed Cortaderia jubata Jubata Grass, Purple Pampasgrass Oregon Noxious Weed Euphorbia esula Leafy Spurge Oregon Noxious Weed Euphorbia myrsinites Myrtle Spurge Oregon Noxious Weed Foeniculum vulgare Fennel Geranium robertianum Herb Robert, Stinky Bob Geranium lucidum Shining Geranium Hieracium floribundum Yellow Hawkweed Oregon Noxious Weed Hieracium aurantiacum Orange Hawkweed Oregon Noxious Weed Impatiens glandulifera Policeman’s Helmet, Jewelweed Oregon Noxious Weed Linaria dalmatica Dalmatian Toadflax Oregon Noxious Weed Linaria vulgaris Yellow Toadflax Oregon Noxious Weed Lythrum salicaria Purple Loosestrife Oregon Noxious Weed Phlaris arundinacea Ribbongrass, Reed Canarygrass Aquatic and Wetland Plants Egeria densa Brazilian Elodea Oregon Noxious Weed Iris pseudoacorus Yellow Flag Iris Oregon Noxious Weed Lythrum salicaria Purple Loosestrife Oregon Noxious Weed Myriophyllum aquaticum Parrot Feather Oregon Noxious Weed
Click on Oregon Noxious Weeds for a complete list.
Click on Oregon Noxious Weed Profiles for pictures and descriptions of noxious weeds.
Common and Scientific Names of Trees, Shrubs, Vines & Perennials
Spring Perennial Color|
Summer Perennial Color|
Fall Perennial Color|
Winter and All Year Perennial Color
Spring Shrub Color|
Summer Shrub Color|
Fall Shrub Color|
Winter Shrub Color|
All Year Shrubs
Spring Tree Color|
Summer Tree Color|
Fall Tree Color|
Winter Tree Color
Spring and Summer Vine Color|
Fall and Winter Vine Color and All Year Vines
More information can be found on my webpages:
Annuals, Biennials, Perennials and Bulbs |
Edible Landscaping |
Fall Planting |
Fruit Tree Tips
Herbs for the Kitchen and Landscape |
House Plants |
Improving Soil |
Landscape Design
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Oregon Invasive Plants |
Oregon Native Landscape Plants |
Pest Control
Plant Nutrients |
Plant Propagation |
Planting a Vegetable Garden |
Planting in Clay Soil
Pruning for Shade, Flowers and Fruit |
Remove Trees Roots and All |
Rod's Garden Pruning
Roses |
Seasonal Pruning Guide |
Trees and Shrubs in the Landscape
Water Wise Gardening |
Winter Plant Protection
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