Aesculus × carnea 'O'Neill Red'
Common name: 
O'Neill Red Horsechestnut
O'Neil Horsechestnut
Pronunciation: 
ES-ku-lus x KAR-nee-a
Family: 
Hippocastanaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf deciduous tree, slow growing to 35ft high and 25 ft wide (11 × 7.6 m), broad-rounded.   Long clusters (25-30 cm) of single, bright red flowers.
  • Sun.  
  • Hardy to USDA Zone (4)5   Introduced by Monrovia nursery in about 1979 (Jacobson,1996).  Monrovia spells the cultivar name as O'Neill; many variations of this name are found in nursery catalogs and horticultural publications.
  • Corvallis: southwest area of Central Park.
Click image to enlarge
  • leaves and flower clusters

    leaves and flower clusters

  • flower cluster and flowers

    flower cluster and flowers