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 Acer palmatum var. atropurpureum 'Twombly's Red Sentinel'

Common Name:
Twombly's Red Sentinel Japanese Maple

Growth Rate:
Columnar growth habit that is great for narrow spaces

Average Mature Height:

Average Mature Width:

Flower Details:
Small red to purple, arching pendulous in May-June. Emerges with new leaves of season.

Fruit Details:
Red samara

Fall Color:
Spectacular red fall color.

Bark Details:
Young stems very green to polished reddish-purple and red, older graycast.

Disease / Insect Problems or Resistance:
None serious

Native Habitat:
Zones 5-7, Japan, China and Korea. Introduced to England in 1820.

Other Features:
Discovered by Twombly Nursery as a witch’s broom of a Bloodgood Maple.

Culture and Care:
Transplants balled and burlapped prefers well drained, moist, high organic matter soil.

This plant was blooming:

Plantings of this cultivar at Boone County Arboretum:

    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.