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Oklahoma Proven Selections
Each spring, Oklahoma Proven’s executive committee announces four new
plant selections. Test sites across the state judge the plants based on
insect and disease resistance and ability to survive Oklahoma’s climatic
conditions with minimal input. In addition, the plant must not have the
potential to become a weed.
1999
Tree: Pistacia chinensis
Chinese Pistache
Shrub: Hydrangea quercifolia Oak-Leaf Hydrangea
(shade)
Perennial: Artemisia ‘Powis Castle’ Powis Castle
Mugwort
Annual: Pennisetum setaceum ‘Rubrum’
Purple Fountain Grass
2000
Tree: Taxodium distichum Bald Cypress
Shrub: Spiraea ‘Magic Carpet’
Magic Carpet Spiraea
Perennial: Verbena canadensis ‘Homestead
Purple’ Homestead Purple Verbena
Annual: Scaecola aemula
Fan Flower
2001
Tree: Quercus shumardii Shumard Oak
Shrub: Ilex decidua
Deciduous Holly
Perennial: Gaura lindheimeri ‘Siskyou
Pink’ ‘Siskiyou Pink’ Gaura
Annual: Zinnia augustifolia
Mexican Zinnia
2002
Tree: Quercus macrocarpa Burr Oak
Shrub: Kerria japonica
Japanese Kerria (shade)
Perennial: Echinacea ‘Magnus’
Magnus Purple Coneflower
Annual: Ipomoea batatas ‘Magarita’
Magarita Sweet Potato
2003
Tree: Gymnocladus dioica Kentucky Coffee
Tree
Shrub: Lagerstroemia indica “Pink Velour’
Pink Velour Crape Myrtle
Perennial: Athyrium nipponicum
Japanese Painted Fern (shade)
Annual: Tecoma stans
Yellow Bells
2006
Tree: Acer truncatum Shantung Maple
Shrub: Jasminum nudiflorum
Winter Jasmine
Perennial: Salvia greggii
Autumn Sage
Annual: Hamelia patens
Fire Bush
2005
Tree: Ulmus crassifolia Cedar Elm
Shrub: Bignonia capreolata ‘Tangerine Beauty’, Crossvine
Perennial: Ceratostigma plumbaginoides, Perennial Plumbago
Annual: Angelonia angustifolia, Summer Snapdragon
2007
Tree: Cercis canadensis var Texensis ‘Oklahoma’
Oklahoma Redbud (state tree)
Perennial: Gallardia
Blanket flower (state flower)
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