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Perennial

  • Milkweed - 2017 Asclepias
    Milkweed
    2017 Asclepias
  • Milkweed - 2017 Asclepias
    Milkweed
    2017 Asclepias
  • Milkweed - 2017 Asclepias
    Milkweed
    2017 Asclepias
  • Sedge - 2016 Carex species
    Sedge
    2016 Carex species
  • Sedge - 2016 Carex species
    Sedge
    2016 Carex species
  • Volcano Phlox - 2015 Phlox paniculata
    Volcano Phlox
    2015 Phlox paniculata
  • Switch Grass - 2014 Panicum virgatum cultivars
    Switch Grass
    2014 Panicum virgatum cultivars
  • ‘Walker’s Low’  Catmint  - 2013 Nepeta x faassenii
    ‘Walker’s Low’ Catmint
    2013 Nepeta x faassenii
  • Arkansas Bluestar - 2012 Amsonia hubrichtii
    Arkansas Bluestar
    2012 Amsonia hubrichtii
  • Arkansas Bluestar - 2012 Amsonia hubrichtii
    Arkansas Bluestar
    2012 Amsonia hubrichtii
  • Arkansas Bluestar - 2012 Amsonia hubrichtii
    Arkansas Bluestar
    2012 Amsonia hubrichtii
  • Giant Coneflower - 2011 Rudbeckia maxima
    Giant Coneflower
    2011 Rudbeckia maxima
  • Giant Coneflower - 2011 Rudbeckia maxima
    Giant Coneflower
    2011 Rudbeckia maxima
  • Toad Lily - 2010 Tricyrtis hirta
    Toad Lily
    2010 Tricyrtis hirta
  • Mexican Feather Grass - 2009 Nassella tenuissima
    Mexican Feather Grass
    2009 Nassella tenuissima
  • Hellebore - 2008 Helleborus
    Hellebore
    2008 Helleborus
  • Evening Primrose - 2007 Oenothera macrocarpa
    Evening Primrose
    2007 Oenothera macrocarpa
  • 'Golden Jubilee' Anise Hyssop - 2006 Agastache foeniculum 'Golden Jubilee'
    'Golden Jubilee' Anise Hyssop
    2006 Agastache foeniculum 'Golden Jubilee'
  • Perennial Plumbago - 2005 Ceratostigma plumbaginoides
    Perennial Plumbago
    2005 Ceratostigma plumbaginoides
  • Autumn Sage - 2004 Salvia greggii 'Pink Perfernce'
    Autumn Sage
    2004 Salvia greggii 'Pink Perfernce'
  • Japanese Painted Fern - 2003 Athyrium nipponicum
    Japanese Painted Fern
    2003 Athyrium nipponicum
  • 'Magnus' Purple Coneflower - 2002 Echinacea purpurea 'Magnus'
    'Magnus' Purple Coneflower
    2002 Echinacea purpurea 'Magnus'
  • 'Siskiyou Pink' Gaura - 2001 Gaura lindheimeri 'Siskiyou Pink'
    'Siskiyou Pink' Gaura
    2001 Gaura lindheimeri 'Siskiyou Pink'
  • 'Homestead Purple' Verbena - 2000 Verbena canadensis 'Homestead Purple'
    'Homestead Purple' Verbena
    2000 Verbena canadensis 'Homestead Purple'
  • 'Powis Castle' - 1999 Artemisia 'Powis Castle'
    'Powis Castle'
    1999 Artemisia 'Powis Castle'

Oklaoma Proven! logo.jpg

 

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 2001

Shumard Oak

Quercus shumardii

Shumard Oak is an Oklahoma native plant that can grow to be over 100’ tall in the wild, but reaches 40 – 60’ in the landscape. Shumard Oak produces healthy green foliage even on alkaline soils, tolerates summer heat and drought, and transplants easily.

  • Sun Exposure: Full
  • Soil: Well-drained
  • Hardiness: USDA Zone 4

 

 

 

Shrub for 2001

Deciduous Holly

Ilex decidua

Deciduous Holly is a native plant typically grown as a multi-stemmed shrub. It tolerates heat, drought, and poorly drained soils and reaches a height of 8 to 12 feet. Female cultivars of Deciduous Holly have beautiful red to yellow berries that remain on the plant through the winter. Male and female cultivars should be planted for fruit production.

  • Sun Exposure: Full sun to part shade
  • Soil: Poorly to well-drained
  • Hardiness: USDA Zone 5

 

 

 

Perennial for 2001

'Siskiyou Pink' Gaura

Gaura lindheimeri 'Siskiyou Pink'

Gaura is a drought-tolerant perennial that thrives in the heat and humidity of the South. Although the species produces white flowers, the cultivar ‘Siskiyou Pink’ has bright pink flowers that appear on airy, 3- to 4-foot-tall sprays early in the spring. Blooming will continue until fall if old flower spikes are removed.

  • Sun Exposure: Full sun to partial shade
  • Soil: Well-drained
  • Hardiness: USDA Zone 5

 

 

 

Annual for 2001

Mexican Zinnia

Zinnia angustifolia

Several cultivars of Mexican Zinnia are available with white, yellow, or orange flowers that bloom all summer. All thrive in the heat, are mildew resistant, and make excellent 1-foot-tall compact plants for containers, bedding, or edging.

  • Sun Exposure: Full
  • Soil: Well-drained
  • Hardiness: Use as an annual