General Plant Information (Edit)
Plant Habit: Shrub
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Neutral (6.6 – 7.3)
Plant Height: 3 feet
Plant Spread: 3 feet
Leaves: Deciduous
Fruit: Dehiscent
Flowers: Showy
Blooms on old wood
Flower Time: Summer
Wildlife Attractant: Bees
Propagation: Other methods: Cuttings: Stem
Cuttings: Cane
Division
Pollinators: Bees
Miscellaneous: Patent/Plant Breeders' Rights: PP25,104 (2014)
Parentage: Glowing Alps x 06-099-01

Image
Trade name information:
Series: Magical®
Trade Name: Ruby Red
Cultivar name: 'Kolmaru'
Common names
  • Mophead Hydrangea
  • Hydrangea
  • Bigleaf Hydrangea
Also sold as:
  • Showstopper Hydrangeas™ Electric Rouge™

Photo Gallery
Location: Columbus, Ohio USA, Zone 6b
Date: 2023-05-13
Location: Columbus, Ohio USA, Zone 6b
Date: 2023-05-13
Location: Knoxville, Tennessee
Date: 2018-07-08
At UT Gardens Knoxville. Was labeled as Electric Rouge from HGTV

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