General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9b
Plant Height: 3 feet
Plant Spread: 3 feet
Leaves: Deciduous
Fruit: Dehiscent
Flowers: Showy
Blooms on old wood
Flower Color: Blue
Pink
Purple
Other: Color depends on soil ph.
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Uses: Cut Flower
Dried Flower
Wildlife Attractant: Bees
Resistances: Salt tolerant
Propagation: Other methods: Cuttings: Stem
Cuttings: Cane
Division
Pollinators: Bees
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots

Image
Trade name information:
Trade Name: Cityline™ Rio
Cultivar name: 'Ragra'
Common names
  • Bigleaf Hydrangea
  • Hydrangea

Photo Gallery
Location: English Gardens, Royal Oak, Michigan
Date: 2019-06-19
Location: English Gardens, Royal Oak, Michigan
Date: 2019-06-19
Location: English Gardens, Royal Oak, Michigan
Date: 2019-06-19
Location: English Gardens, Royal Oak, Michigan
Date: 2019-06-19

Photo courtesy of Proven Winners
  • Uploaded by Joy

Photo courtesy of Proven Winners
  • Uploaded by Joy
Comments:
  • Posted by NHJenDion (Southern NH - Zone 5b) on Jun 14, 2021 2:09 PM concerning plant:
    This plant is not flower hardy in zone 5. It will survive, but dies back to the ground every year, effectively preventing flowers on the old wood.

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