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The Plant Guide

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Knock Out® rose

Rosa 'Radrazz'

ROE-sah Audio

Rosa 'Radrazz' Knock Out

Vibrant blossoms appear in spring and continue until frost. In fall, the dark green foliage and hearty stems are edged with red. -Judith Ireland, Regional Reports: Northeast, Fine Gardening issue #122

Noteworthy CharacteristicsThis cultivar does not require deadheading.  'Radrazz'  is resistant to black spot and tolerant of mildew.

CareControl the vigorous habit of this rose by pruning in early spring.

  • Genus : Rosa
  • Plant Height : 3 to 6 feet
  • Plant Width : 3 to 6 feet
  • Zones : 4, 5, 6, 7, 8, 9
  • Bloom Time : Early Fall, Early Summer, Fall, Late Summer, Summer
  • Plant Seasonal Interest : Fall Interest
  • Growth Rate : Fast
  • Uses : Foundation Plantings
  • Characteristics : Fragrant Flowers, Showy Fall Foliage, Showy Fruit
  • Light : Full Sun to Partial Shade
  • Maintenance : Low
  • Moisture : Medium Moisture
  • Flower Color : Red
  • Plant Type : Shrubs

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