Aesculus × carnea
Common name: 
Red Flowering Horsechestnut
ES-ku-lus x KAR-nee-a
Native to (or naturalized in) Oregon: 
  • Broadleaf deciduous tree, 35-50 ft (11-15 m) high, broad-rounded.  Leaves opposite, palmately compound, generally 5-leaflets, often recurved and twisted, leaflets obovate, 8-15 cm long, base wedge-shaped (cuneate), tip acute, margin double serrate, lustrous dark green above, nearly glabrous below.  Flowers soft pink to bright red in 20 cm upright clusters (spectacular in May).   Tan to brown globose fruit, about 4 cm long, only slightly prickly.  Buds not as large or as sticky as those of A. hippocastanum.
  • Sun to light shade.  Best on moist, slightly acid soil.
  • Hardy to USDA Zone (4)5   From a cross of A. pavia and A. hippocastanum.   Cultivars include 'Briotii', rosy crimson flowers; 'O'Neill Red', bright red single flowers.
  • Oregon State Univ. campus: southeast of Waldo, several trees, one of which is joined at the base with an A. hippocastanum, which is probably the rootstock.
Click image to enlarge
  • plant habit, flowering

    plant habit, flowering

  • flower clusters and leaves

    flower clusters and leaves

  • flower clusters and leaves, comparison

    flower clusters and leaves, comparison

  • flower cluster and flowers

    flower cluster and flowers

  • developing fruit

    developing fruit

  • plant habit, summer

    plant habit, summer

  • leafy shoot

    leafy shoot

  • leaf


  • leaves


  • leaves, comparison

    leaves, comparison

  • leaves and fruit

    leaves and fruit

  • plant habit and leaves, fall

    plant habit and leaves, fall

  • fruit and seeds, fall

    fruit and seeds, fall

  • trunk, bark

    trunk, bark

  • winter buds, comparison

    winter buds, comparison