Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Rosa 'Double' you will need.

Approx. Length (ft):
Approx. Width (ft):
*Distance Between Plants (in):

*Correct and successful spacing is complex and depends on project conditions.

Knock Out®

Rosa 'Double'

Shrub Rose

  • Clusters of double, red flowers
  • Glossy dark green leaves
  • Leaves emerge reddish
  • Purple fall foliage

  • Category: Shrubs, Rose
  • Alternate Cultivar: 'Radtko'
  • Patent: PP16202, CPBR 3104
  • Hardiness Zone: 5-9
  • Height: 3-4 ft
  • Spread: 3-4 ft
    Currently Unavailable
Attracts Wildlife
Attracts Butterflies
Exposure
Full Sun
Foliage Color
Green
Soil Moisture
Average Water
Habit
Mounding
Upright
Season of Interest (Flowering)
Summer

Learn More about Rosa (Rose)

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