Holodiscus dumosus
Common name: 
Mountain Spray
Rock-spiraea
Pronunciation: 
ho-lo-DIS-kus doo-MO-sus
Family: 
Rosaceae
Genus: 
Type: 
Broadleaf
Native to (or naturalized in) Oregon: 
No
  • Broadleaf, deciduous shrub which grows to 1.5-20 ft (~ 0.5-6 m) tall and 5-10 ft (1.5-3 m) wide.  Stems branch from the root crown and spread outward. Branches have shreddy bark and smaller reddish twigs may be slightly spiny. Leaves are simple, alternate, about 2.3 cm long an 1 cm wide, lobed and with toothed margins. The flower clusters (panicles) carry small, pinkish-white to cream flowers; bloom occurs from June through August.

  • Hardy to USDA Zone 3         Its native range extends from central Idaho south to southern Arizona and the Big Bend region of Texas and east to the edge of the plains grasslands in east-central Wyoming, Colorado, New Mexico, and into  the upper third of Mexico.

  • Part shade, used in natural landscaping design projects and as a large container plant.

Click image to enlarge
  • plant habit, flowering

    plant habit, flowering

  • leaves and flower clusters

    leaves and flower clusters

  • flower cluster

    flower cluster