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Selections for 2002

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 2002

Bur Oak

Quercus macrocarpa

Bur Oak is an Oklahoma native that can grow to 60 feet tall, with an even larger spread, and can tolerate drought, heavy soils, and high pH soils. Bur Oak can grow to be a majestic specimen and is an important wildlife species since many animals feed on its large acorns.

  • Sun Exposure: Full
  • Soil: Adapted to alkaline, sandy, and clay soils
  • Hardiness: USDA Zone 3

 

 

 

Shrub for 2002

Japanese Kerria

Kerria japonica

Japanese Kerria produces an abundance of yellow, rose-like flowers in the early spring and sporadically through the summer. The species has single yellow flowers while ‘Pleniflora’ (the cultivar shown here) has double flowers. In winter Japanese Kerria adds interest to the garden with its bright green stems and arching habit. Japanese Kerria can be rejuvenated by cutting the shrub to the ground every few years.

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

 

 

 

Perennial for 2002

'Magnus' Purple Coneflower

Echinacea purpurea 'Maguns'

Magnus Purple Coneflower is known for its rose-colored flowers that appear in early summer and sporadically until frost. Magnus is a clump forming perennial that grows to 2 - 3 feet tall. Use this heat and drought tolerant perennial in a native plant garden, perennial border, or as a cut flower.

  • Sun Exposure: Full sun to light shade
  • Soil: Well-drained
  • Hardiness: USDA Zone 3

 

 

 

Annual for 2002

'Margarita' Sweet Potato

Ipomoea batatas 'Margarita'

Margarita is a spreading vine with chartreuse leaves, excellent as a ground cover or as a potted plant. This striking new cultivar tolerates full sun to partial shade and can grow to 8 inches tall and 20 feet long. It is shown here with Fan Flower and Purple Fountain Grass, previous Oklahoma Proven selections.

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