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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.

 


Collector's Choice for 2010

'Caddo' Sugar Maple

Acer saccharum 'Caddo'

Caddo Sugar Maple is a native population of sugar maple found growing in Caddo County in southwestern Oklahoma. The leaves are dark green, deeply lobed and leathery making it more resistant to leaf tatter and scorch. Caddo Sugar Maple is also quite tolerant of high pH soils, extreme heat and drought conditions commonly found in western Oklahoma. It can reach 30’ to 50’ tall and is a beautiful medium to large shade tree. Fall color is variable, but can range from yellow to golden yellow to orange and sometimes red; cultivars selected for brilliant fall colors as well as outstanding performance are available.

  • Exposure: Full sun
  • Soil: Prefers well-drained
  • soil; tolerant of dry and high pH soils Hardiness: USDA Zone 5-9

 

 

Tree for 2010

Indian Cherry

Rhamnus caroliniana

Indian Cherry is a small tree (or large, multi-stemmed shrub) to 20’ tall with a rounded to spreading canopy. It is native to the eastern, southeastern US making it more desirable over its European cousins. The foliage is dark, lustrous green all summer turning yellow to orange yellow in the fall. Probably its greatest asset is the colorful fruits that develop late summer/fall turning red and then to black as they mature. These beautiful, sweet fruit also attract several species of birds and can be used to make jams and jellies.

  • Exposure: Full sun to shade
  • Soil: Prefers well-drained soil
  • Hardiness: USDA Zone 5-9

 

 

 

Shrub for 2010

Koreanspice Viburnum

Viburnum carlesii

Koreanspice Viburnum is a small to medium sized shrub offering year round interest. In summer the leaves are dark green, fall color can be wine-red. Flower buds are pink to red opening white or pink in spring omitting a wonderful fragrance. In late summer clusters of red fruit that fade to black invite birds to the garden. Once the shrub has become established it is quite heat and drought tolerant and though it prefers moist, slightly acid soils, and sun to part shade, it is tolerant of high pH soils and wind-swept conditions. It grows from 4’ to 5' high and just as broad. Valued for its fragrant flowers, this shrub can be used as a foundation planting, specimen, or incorporated into a mixed border. Several improved cultivars are available.

  • Exposure: Sun to part shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 5-7

 

 

 

Perennial for 2010

Toad Lily

Tricyrtis hirta

Toad lilies are known for their very unique flowers. Flowers are pale lilac with dark purple spots that appear on upright arching stems late summer to early fall when many other plants are beginning to wind down. Though flowers are quite unique, they are small so place toad lily in a spot where the flowers can be appreciated up close. The plant grows 2’ to 3’ high and about 2’ wide with bright green leaves. They are excellent for the woodland garden as understory plants where they will be protected by shade. Toad lily is easy to grow, resistant to deer, somewhat drought tolerant, but grow best in moist soils and will even tolerate wet conditions. Several cultivars with varying flower colors are available.

  • Exposure: Shade, partial shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 4-8

 

 

 

Annual for 2010

Silver Falls Dichondra

Dichondra argentea

‘Silver Falls’ Dichondra was selected for its very low growing, creeping trailing habit and beautiful silvery gray leaves that are shaped like miniature lily pads. Silver Falls is actually a selection of a dichondra species native to southwest Texas and Mexico so it is quite heat and drought tolerant. Growing only 2” tall and 3’ to 4’ wide it is an attractive groundcover, but is also spectacular in a container planting or hanging basket, spilling over a retaining wall, or when used in a rock garden.

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