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Japanese Maple 'Red Emperor': Improved Bloodgood from Red Maple Nursery

Japanese Maple Red Emperor

Red Emperor foliage

Red Emperor form

Red Emperor bark

Overview

Japanese Maple 'Red Emperor' (Acer palmatum 'Red Emperor'), also known as 'Emperor 1' or 'Emperor I', is an improved selection of the classic 'Bloodgood' type, hybridized by Red Maple Nursery in Media, PA. It features deep purple-red foliage that holds its color exceptionally well in summer heat, turning brilliant crimson in fall. It is reported to be more vigorous and cold-hardy than 'Bloodgood'. A top-tier red upright maple.

Botanical Details

  • Family: Sapindaceae (sap-in-DAY-see-ee)
  • Genus: Acer (AY-ser)
  • Species: Acer palmatum (pahl-MAY-tum)
  • Cultivar: 'Red Emperor'
  • Also known as: 'Emperor 1', 'Emperor I'
  • Hybridizer: Red Maple Nursery (Media, PA)
  • Synonym: Acer palmatum var. purpureum

Cultivation Guide

USDA zones 5-8 (possibly hardier). Prefers full sun to partial shade. Moist, well-drained, acidic soil. Water regularly. Prune in winter.

Garden Applications

Excellent as a specimen tree, in rows, or in large borders. A reliable, high-performance red maple for demanding landscapes.

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