Replacing aspens on the Front Range

Asked February 6, 2017, 5:08 PM EST

I had 5 aspen trees in my front yard that were roughly 25 years old. One fell last year in a spring snow storm and the others started weeping from the bark and getting discolored. A few different arborists said they were dying so I had them removed. Now I am looking for something to replace them, but I'd rather not do aspens again. The trees were 6 - 10 feet from the house and were over 25 feet tall. Are there any deciduous trees that could replace aspens that close to a house?

Boulder County Colorado trees and shrubs

1 Response

Hello,
The CSU Fact Sheet on Small Deciduous Trees, http://extension.colostate.edu/docs/pubs/garden/07418.pdf, contains many options for you to choose from. As you are researching, consider

  1. water requirements (lower water users are better when located close to a foundation)
  2. Light requirements
  3. Dimensions: being 6-10 feet from the house, you will need to choose trees with a 12 - 20 foot mature spread.
Some options from this list for you to consider:
  • Several of the Hawthorns (Cratageus sp)
  • Several of the Prunus sp
  • Sorbus aucuparia (Cardinal Royal Mountain Ash)
  • Crimson Spire Oak (Quercus x ‘Crimschmidt’) 45 x 15 - gets much taller (45 ft.), but would be within the width requirement. This is from the Large Deciduous list http://extension.colostate.edu/docs/pubs/garden/treereclist.pdf.

As you are researching, cross check your considerations against the Front Range Tree Recommendation List http://extension.colostate.edu/docs/pubs/garden/treereclist.pdf. It gives letter grades to tree varieties, along with some recommendations & limitations.

Best regards,