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Bigleaf Hydrangea

Botanical Name
Hydrangea macrophylla
Hardiness
Zones 6 to 9
Height
3 to 4 feet
Width
4 to 6 feet
Flowers
Pink to blue - depending on pH, look of flower depends on cultivar
Light
Sun to part shade (best)
Soil
Moist, well-drained, organic
Planting & Care
  • Blooms on previous season's growth
  • If needed, prune immediately AFTER flowering by cutting back stems to a pair of healthy buds
  • Prune out dead, weak or wayward stems in late winter or early spring
  • Does not do well in hot dry conditions
  • Moderately salt tolerant
  • pH affects flower color
    • Blue in highly acidic soils
    • Lilac to pink in slightly acidic to alkaline soils
  • Plants grown in Zone 5 should be grown in a sheltered location and provided additional winter protection to minimize the risk of loss of flower buds and die back due to harsh winter weather
Problems
Winter hardiness
Varieties
  • All Summer Beauty - 3-4' tall and wide, blooms on new growth
  • Endless SummerTM - Zones 5 to 9, blooms on current seasons growth
  • Twist and Shout – 3 to 4’ tall & wide, lace cap flowers on old and new wood

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