A fast growing, broad-leaf tree, reaching over 150’ tall and 3’ diameter on good sites. Short-lived.  Prefers moist but well drained soils. Typically found along streams and on floodplains.  Very common in Jackson & Josephine County lowland streamside areas.  Well suited for shade and bank stabilization. 

A hybrid poplar is a black cottonwood crossed with another cottonwood species, such as eastern cottonwood. Hybrid cottonwoods may grow even faster than our native cottonwood, but are not necessarily as well adapted to the local environment, as one of the parents is non-native.

Planting

Often planted as a cutting and sometimes as a rooted cutting.

Natural Regeneration

Re-sprouts vigorously from stumps or roots after cutting or fire. Small branches that break off a tree can float downstream and take root in moist soils.  Female trees produces millions of lightweight seeds (the “cotton” of cottonwood)  that can be carried for long distances by wind or  water.

  • Stream-side Planting Zones:  1-2.  Sometimes found in Zone 3 on larger streams or rivers when subsurface moisture is abundant. 
  • Tolerance to flooding: HIGH
  • Tolerance to shade: LOW
  • Tolerance to drought: LOW

Was this page helpful?

Related Content from OSU Extension

Ask an Expert

Have a question? Ask an Expert!

Ask an Expert is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.

Ask us a question