Boone County Arboretum
9190 Camp Ernst Road
Union, Kentucky 41091
Phone: (859) 384-4999
Fax: (859) 384-6888

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Cultural Details for Hydrangea macrophylla 'Merritt Supreme'

Common Name:
Meritt Supreme Bigleaf Hydrangea

Growth Rate:

Average Mature Height:
3'-4' semi-dwarf

Average Mature Width:
Spread may be equal to or greater than height.

Flower Details:
Pink with a touch of purple in high acid soil, large mophead 6"-8", early, June through fall. Flower heads stay in perfect condition turning to green, red or purple autumnal tints. Will flower as a young plant.

Fruit Details:
Capsule, 0.25 to 0.3125 long, not showy.

Fall Color:
Large dark green leaves endure into the fall.

Bark Details:
Light, shiny, gray-or straw-brown color.

Disease / Insect Problems or Resistance:
Hydrangeas are generally trouble-free and very rewarding.

Native Habitat:

Other Features:

Culture and Care:
Transplant into moist, well-drained, soil which has been amended with peat moss or leaf mold; best in partial shade. Sun tolerance is only fair. USDA Zones 6-9.

This plant was blooming:
8/17/2007 - 8/31/2007

Plantings of this cultivar at Boone County Arboretum:
Bed 44

    The information on this page may have come from one or more of the following sources:
  • Dirr, Michael. Manual of Woody Landscape Plants. Stipes Publishing. 1998.
  • Hightshoe, Gary L. Native Trees, Shrubs, and Vines for Urban and Rural America. John Wiley & Sons. 1988.
  • North Carolina Extension Plant Fact Sheets.
  • University of Connecticut Plant Database.