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Annual

  • Supertunia® Vista Bubblegum® - 2018 Petunia 'Ustuni6001'
    Supertunia® Vista Bubblegum®
    2018 Petunia 'Ustuni6001'
  • Supertunia® Vista Bubblegum® - 2018 Petunia 'Ustuni6001'
    Supertunia® Vista Bubblegum®
    2018 Petunia 'Ustuni6001'
  • Firecracker Flower - 2017 Crossandra infundibuliformis
    Firecracker Flower
    2017 Crossandra infundibuliformis
  • Firecracker Flower - 2017 Crossandra infindibuliformis
    Firecracker Flower
    2017 Crossandra infindibuliformis
  • Vinca - 2016 Catharanthus
    Vinca
    2016 Catharanthus
  • Vinca - 2016 Catharanthus
    Vinca
    2016 Catharanthus
  • Vinca - 2016 Catharanthus
    Vinca
    2016 Catharanthus
  • Spider Flower - 2015 Cleome hybrids
    Spider Flower
    2015 Cleome hybrids
  • 'Big Twister' Corkscrew Rush - 2014 Juncus effusus 'Big Twister'
    'Big Twister' Corkscrew Rush
    2014 Juncus effusus 'Big Twister'
  • Dakota Gold - 2013 Helenium 'Dakota Gold'
    Dakota Gold
    2013 Helenium 'Dakota Gold'
  • Dakota Gold - 2013 Dakota Gold
    Dakota Gold
    2013 Dakota Gold
  • Magilla™ Perilla - 2012 Perilla frutescens
    Magilla™ Perilla
    2012 Perilla frutescens
  • Pink Crystal Ruby Grass - 2011 Melinus nerviglumis 'Savannah'
    Pink Crystal Ruby Grass
    2011 Melinus nerviglumis 'Savannah'
  • Pink Crystals Ruby Grass - 2011 Melinus nerviglumis
    Pink Crystals Ruby Grass
    2011 Melinus nerviglumis
  • Silver Falls Dichondra - 2010 Dichondra argentea
    Silver Falls Dichondra
    2010 Dichondra argentea
  • Diamond Frost Euphorbia - 2009 Euphorbia 'Inneuphdia'
    Diamond Frost Euphorbia
    2009 Euphorbia 'Inneuphdia'
  • Spilanthes - 2008 Acmella oleracea 'Peek-A-Boo'
    Spilanthes
    2008 Acmella oleracea 'Peek-A-Boo'
  • Blanket Flower - 2007 Gaillardia
    Blanket Flower
    2007 Gaillardia
  • Wishbone Flower - 2006 Torenia fournirez
    Wishbone Flower
    2006 Torenia fournirez
  • Summer Snapdragon - 2005 Angelonia angustifolia
    Summer Snapdragon
    2005 Angelonia angustifolia
  • Firebush - 2004 Hamelia patens
    Firebush
    2004 Hamelia patens
  • Yellow Bells - 2003 Tecoma stans
    Yellow Bells
    2003 Tecoma stans
  • 'Margarita' Sweet Potato - 2002 Echinacea purpurea 'Margarita'
    'Margarita' Sweet Potato
    2002 Echinacea purpurea 'Margarita'
  • Mexican Zinnia - 2001 Zinnia angustifolia
    Mexican Zinnia
    2001 Zinnia angustifolia
  • Fan Flower - 2000 Scaevola aemula
    Fan Flower
    2000 Scaevola aemula
  • Purple Fountain Grass - 1999 Pennisetum setaceum
    Purple Fountain Grass
    1999 Pennisetum setaceum

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 2013

Specialty Fruit for Small Spaces

Miniature peaches, columnar apples, dwarf pomegranate, and dwarf patio type blueberries.

Many of the fruits we enjoy so much don’t fit well in today’s urban landscapes, especially the standard variety fruit trees. However, today’s breeding and production techniques bring us dwarf and miniature versions that fit in just about any space. Columnar apples, patio peaches, dwarf pomegranate and compact blueberries now make easy to enjoy fresh fruit right out our backdoors; and they are ornamental too!

  • Exposure: Full sun to part shade
  • Soil: Prefers moist, well-drained soil; blueberries require acidic soil (pH5)
  • Hardiness: USDA Zone 3-11 (varies by species)

 

 

 

Tree for 2013

Winterberry Euonymus

Euonymus bungeanus

Winterberry euonymus is a large shrub to small tree with pendulous branches and light green foliage. Flowers are yellowish-green but not showy. Fruits are pinkish capsules which split open at maturity revealing an orange aril (fleshy seed covering). Fall color can be yellow to orange and red. Bark is green with a rough texture and is also quite attractive. Winterberry grows 15’-24’ high and just about as wide. It is very adaptable and quite drought tolerant. It is mostly resistant to scale insects that are common on other euonymus species. Winterberry makes a great patio or specimen tree.

  • Exposure: Full sun to part shade
  • Soil: Tolerates a wide range of soils
  • Hardiness: USDA Zone 4-7

 

 

 

Shrub for 2013

Chaste Tree

Vitex spp.

Vitex is a multi-stemmed large shrub, but can be trained into a small tree. Leaves are palmately compound and dark green. Flowers appear in early summer and continue to bloom sporadically through summer and fall. Flowers of Vitex can be blue, lavender, pink or white. Old strains had small spikes of flowers; improved varieties have large spikes (8” to 12” long) of colorful flowers that are fragrant and make excellent cut flowers. Vitex is not too picky of soils and is easy to grow, very heat, drought and pest tolerant and an excellent choice for a xeric garden. Vitex is often considered an excellent replacement for lilacs, which grow much better in colder climates, and it attracts butterflies and hummingbirds.

  • Exposure: Sun to part shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 4-9

 

 

 

Perennial for 2013

Catmint

Nepeta x faassenii 'Walker's Low'

Walker’s Low Catmint was the Perennial Plant of the Year in 2007 and is an easy to grow, pest free perennial. This hybrid Nepeta develops into a mound of aromatic, grayish green foliage. Lavender-blue flowers appear in spring and continue to bloom if properly pruned by trimming after initial flowering. Walker’s Low grows 1 to 2 feet high and 1 ½ to 3 feet wide and can be used as edging or in a border, herb or rock garden, naturalized area, as groundcover, or is quite attractive spilling over the edge of a wall. Nepeta attracts bees and butterflies. It also tolerates some shade, dry, rocky soil, and is quite drought and deer resistant.

  • Exposure: Sun, part shade
  • Soil: Moist, well-drained
  • Hardiness: USDA Zone 3-8

 

 

 

Annual for 2013

Dakota Gold, Sneezeweed

Helenium 'Dakota Gold'

Common names for Helenium include sneezeweed and bitterweed, a native wildflower of Texas. Dakota Gold is a cultivar with excellent ornamental qualities and because it is native to Texas it is also very tough and tolerates heat and dry conditions. Dakota Gold grows as low, 6” to 8” mounded cushions, of fine, dark green foliage covered with golden yellow flowers all summer long. Dakota Gold looks great in beds, containers, rock gardens, borders, and as an accent.

  • Exposure: Full sun
  • Soil: Almost any soil (well-drained)
  • Hardiness: Use as an annual