Trees
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Vanderwolf Pyramid, Limber Pine2019 Pinus flexilis
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Vanderwolf Pyramid, Limber Pine2019 Pinus flexilis
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Japanese Zelkova2018 Zelkova serrata 'Schmidtlow Wireless'
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Japanese Zelkova2018 Zelkova serrata 'Musashino'
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Japanese Zelkova2018 Zelkova serrata 'Ogon'
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Fringetree2017 Chionanthus cultivars
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Fringetree2017 Chionanthus Virginicus
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Chioanthus2017 virgincus
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Chionanthus Fruit2017 Chionanthus
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Escarpment Oak2016 Quercus fusiformis
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Escarpment Live Oak2016 Acorn
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Hedge Maple2015 Acer campestre
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Desert-willow cultivars2014 Chilopsis liners
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Desert-willow cultivars2014 Chilopsis Flower
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Winterberry Euonymus2013 Euonymus bungeanus
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Chinkapin Oak2012 Chinkapin Oak
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'New Harmony' American Elm2011 Ulmus americana
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Indian Cherry2010 Rhamuns carolinians
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Arizona Cypress2009 Cupressus arizonica
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Bosnian Pine2008 Pinus heldreichii
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Oklahoma Redbud2007 Cercis canadensis var. texensis
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‘Prairifire’ Crabapple2006 Malus ' Prairifire'
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Cedar Elm2005 Ulmus crassifolia
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Cedar Elm2005 Ulmus crassifolia
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Shantung Maple2004 Acer truncatum
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Kentucky Coffee Tree2003 Gymnocladus dioica
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Bur Oak2002 Quercus macrocarpa
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Shumard Oak2001 Quercus shumardii
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Bald Cypress2000 Taxodium distichum
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Chinese Pistache1999 Pistacia chinensis
Oklahoma Proven is a plant promotion program coordinated by faculty in the Department of Horticulture and Landscape Architecture at Oklahoma State University. The goal of the program is to recommend plants well-adapted for use across Oklahoma.
Tree for 2000
Bald Cypress
Taxodium distichum
This large Oklahoma native will lose its leaves in the fall after turning a russet or coppery-bronze and can easily grow to 70’ high with a 30’ spread. Tolerant of both wet and dry soils, Bald Cypress makes an outstanding specimen, street tree, or pond-side grove.
- Sun exposure: Full
- Soil: Well-drained to flood tolerant
- Hardiness: USDA Zone 4
Shrub for 2000
‘Magic Carpet’ Spirea
Spiraea japonica 'Magic Carpet'
‘Magic Carpet’ Spirea is a new compact cultivar from England with dark pink flowers and reddish shoots bearing gold-tinged young foliage in spring. This shrub will remain compact, making it perfect for mixed borders, rock gardens, or small-scale landscapes.
- Sun exposure: Full
- Soil: Moist, well-drained
- Hardiness: USDA Zone 4
Perennial for 2000
Homestead Purple Verbena
Verbena canadensis 'Homestead Purple'
Homestead Purple’s deep purple flowers and trailing habit make it perfect for hanging baskets, as a ground cover, or as the foreground of a mixed border. This North American native will bloom from spring to frost, slowing down only slightly during the hottest months.
- Sun exposure: Full
- Soil: Moist, well-drained
- Hardiness: USDA Zone 4
Annual for 2000
Fan Flower
Scaevola aemula
Fan Flower is an evergreen tropical used as an annual in temperate climates. This low-growing plant carpets the ground with flowers all season long when grown in full sun. It prefers a moist, well-drained soil but is quite drought tolerant once established.
- Sun exposure: Full
- Soil: Moist, well-drained
- Hardiness: Use as an annual