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Shrubs

  • Double Take™ series, Flowering Quince - 2019 Chaenomeles speciosa
    Double Take™ series, Flowering Quince
    2019 Chaenomeles speciosa
  • Double Take™ series, Flowering Quince - 2019 Chaenomeles speciosa
    Double Take™ series, Flowering Quince
    2019 Chaenomeles speciosa
  • Bush Clover 'Gibraltar' - 2018 Lespedeza thunbergii subsp. thunbergii
    Bush Clover 'Gibraltar'
    2018 Lespedeza thunbergii subsp. thunbergii
  • Bush Clover ‘Gibraltar’ - 2018 Lespedeza thunbergii subsp. thunbergii
    Bush Clover ‘Gibraltar’
    2018 Lespedeza thunbergii subsp. thunbergii
  • Dwarf Palmetto - 2017 Sabal minor
    Dwarf Palmetto
    2017 Sabal minor
  • Dwarf Palmetto - 2017 Sabal minor
    Dwarf Palmetto
    2017 Sabal minor
  • Yucca - 2016 Yucca filamentosa
    Yucca
    2016 Yucca filamentosa
  • Color Guard Yacca - 2016 Yucca filamentosa
    Color Guard Yacca
    2016 Yucca filamentosa
  • Barberry - 2015 Berberis thunbergii
    Barberry
    2015 Berberis thunbergii
  • ‘Christom’  Blue Muffin® - 2014 Viburnum dentatum
    ‘Christom’ Blue Muffin®
    2014 Viburnum dentatum
  • ‘Christom’ Blue Muffin® Fruit - 2014 Viburnum dentatum
    ‘Christom’ Blue Muffin® Fruit
    2014 Viburnum dentatum
  • Chaste Tree - 2013 Vitex
    Chaste Tree
    2013 Vitex
  • Juniper 'Taylor' - 2012 Juniperus virginiana 'Tylor'
    Juniper 'Taylor'
    2012 Juniperus virginiana 'Tylor'
  • Icee Blue - 2012 J. horizontalis 'Monber'
    Icee Blue
    2012 J. horizontalis 'Monber'
  • 'Saybrook Gold' - 2012 J. chinensis 'Saybrook Gold'
    'Saybrook Gold'
    2012 J. chinensis 'Saybrook Gold'
  • Little Richard - 2011 Abelia x grandiflora
    Little Richard
    2011 Abelia x grandiflora
  • Kaleidoscope - 2011 Abelia x grandiflora
    Kaleidoscope
    2011 Abelia x grandiflora
  • Rose Creek' Abeia - 2011 Abelia
    Rose Creek' Abeia
    2011 Abelia
  • Koreanspice Viburnum - 2010 Viburnum carlesii
    Koreanspice Viburnum
    2010 Viburnum carlesii
  • Chokebeery - 2009 Aronia
    Chokebeery
    2009 Aronia
  • American Beautyberry - 2008 Callicarpa americana
    American Beautyberry
    2008 Callicarpa americana
  • Southern Waxmyrtle - 2007 Myrica cerifera
    Southern Waxmyrtle
    2007 Myrica cerifera
  • Diabolo® Ninebark - 2006 Physocarpus opulifolius 'Monlo'
    Diabolo® Ninebark
    2006 Physocarpus opulifolius 'Monlo'
  • Crossvine - 2005 Bignonia capreolata
    Crossvine
    2005 Bignonia capreolata
  • Winter Jasmine - 2004 Jasminum nudiflorum
    Winter Jasmine
    2004 Jasminum nudiflorum
  • Pink Velour® Crape Myrtle - 2003 Lagerstroemia indica 'Whit III'
    Pink Velour® Crape Myrtle
    2003 Lagerstroemia indica 'Whit III'
  • Japanese Kerria - 2002 Kerria japonica
    Japanese Kerria
    2002 Kerria japonica
  • Deciduous Holly - 2001 Ilex decidua
    Deciduous Holly
    2001 Ilex decidua
  • 'Magic Carpet' Spirea - 2000 Spiraea japonica 'Magic Carpet
    'Magic Carpet' Spirea
    2000 Spiraea japonica 'Magic Carpet
  • Oakleaf Hydrangea - 1999 Hydrangea quercifolia
    Oakleaf Hydrangea
    1999 Hydrangea quercifolia

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 2008

Bosnian Pine

Pinus heldreichii

Bosnian Pine is a slow-growing evergreen with a dense pyramidal form when young. It has the potential to grow to 70' tall in its native environment but is more likely to reach only 25 to 30' in the landscape. In the Pirin Mountains of Bulgaria there is a 70' tall Bosnian Pine estimated to be over 1300 years old! Young cones are purple and turn brown as they mature and the seed they produce is edible. Bosnian Pine prefers full sun and once established is quite tolerant of high pH soils and drought. It is also disease resistant and can be used in the landscape where an evergreen or pine is desired and space is limited.

  • Exposure: Full sun
  • Soil: Tolerant of dry and high pH soils
  • Hardiness: USDA Zone 6

 

 

Shrub for 2008

American Beautyberry

Callicarpa americana

American Beautyberry is a native deciduous shrub that produces inconspicuous lavender flowers in mid summer but as fall approaches the plant becomes laden with brightly colored clusters of purple fruit producing a striking display. American Beautyberry prefers light shade or protection from the afternoon sun in Oklahoma. It grows from 5 to 10' high and just as broad but overgrown plants can be rejuvenated by cutting them to the ground in winter without sacrificing fruit since the flowers are produced on new growth. This native shrub can be massed as an informal hedge, incorporated into a mixed border, or used as an understory plant in a naturalistic garden setting. White fruited cultivars are also available.

  • Exposure: Light shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 6

 

 

 

Perennial for 2008

Hellebore

Helleborus

Hellebores, also known as Lenten Rose, belong to a genus of mostly evergreen herbaceous plants that are prized for their ability to flower in late winter. The flower stalks rise out of the leaf litter or through the snow to display nodding flowers that range in color from green to white, yellow, or even purple with some cultivars producing spotted flowers. Recently hybrids have been selected for outward-facing flowers and brighter colors increasing their garden value. Hellebores are tough plants requiring little special care other than shade and pruning of old foliage. They are excellent for the woodland garden as understory plants where they will be protected by shade.

  • Exposure: Shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 6

 

 

 

Annual for 2008

Spilanthes

Acmella oleracea 'Peek-A-Boo'

‘Peek-A-Boo’ Spilanthes was selected for its yellow flowers, each with a red eye poking up out of the foliage. The green foliage has a purple tinge in full sun turning more purple as fall approaches and the foliage can be used in salads or cooked as a green. Spilanthes is also known as the Toothache Plant because it has been used to numb pain. In the garden it is a great conversation piece when combined with other plants in a mixed container or it can be used as a flowering groundcover growing 12 to 15 inches tall and spreading 24 to 30 inches.

  • Exposure: Full sun to part shade
  • Soil: Moist, well-drained
  • Hardiness: Use as an annual