En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - July 04, 2008

From: Westminster, CO
Region: Rocky Mountain
Topic: Trees
Title: Columnar evergreen for Colorado
Answered by: Nan Hampton

QUESTION:

I am looking for an evergreen 6-8 (or more) feet tall, very columnar; 3 feet spread in diameter, zone 5, full sun, dark green, clayish-OK soil. Thank you so much!

ANSWER:

Here are some suggestions for conical evergreens that are native to Colorado:

Abies concolor (white fir or Colorado fir) is "symetrically conical in yourh", but becomes more irregular as it grows taller. It's maximum height can be as much as 100 feet but is, in general, slow-growing. it doesn't do well in heavy clay soils, but adapts well to other soils. There are various dwarf and other cultivars.

Juniperus scopulorum (Rocky Mountain juniper) is described as being "columnar to somewhat rounded" and its maximu height is 30-40 feet with a spread of 3-15 feet. There are cultivars (e.g., 'Blue Trail','Gray Gleam', 'Medora', 'Pathfinder', 'Skyrocket') that have a more columnar growth.

Picea pungens (blue spruce) is "naturally conical in shape...grows from 50-100 ft, but it is usually shorter in cultivation." There are several cultivars.

Pseudotsuga menziesii (Douglas-fir) is columnar or conical. It "grows from 15-150 ft. tall depending on the environment." There are various cultivars.

You can see more native Colorado trees by doing a Combination Search in our Native Plant Database and selecting 'Colorado' from Select State or Province and 'Tree' from Habit (general appearance). There are other characteristics, as well, that you can use to narrow your search.


Abies concolor

Juniperus scopulorum

Picea pungens

Pseudotsuga menziesii

 

 

More Trees Questions

Trimming oaks and elms from New Braunfels TX
June 20, 2012 - I would like to trim my live oaks and elm trees at the same time, if possible. I think they are American Elms. When is the best time to do this and avoid oak wilt and Dutch elm disease? Should all c...
view the full question and answer

Medium-sized trees for Central Texas
October 25, 2013 - I need some help figuring out what 2 trees to plant to replace 2 trees that are being taken down on Monday. The input we've received from the company doing the tree cleanup is to go with a chinkapi...
view the full question and answer

Tall screening tree for Santa Barbara, California
August 20, 2011 - Hi, we live in Santa Barbara, California. We are looking for a tree between 20-30 feet high to block the neighbors two-story house yet the area we have to plant is 3 feet from the fence to the drivewa...
view the full question and answer

Planting a redbud in VA
April 20, 2011 - What is the best time of year to plant Redbud (Cercis canadensis)in Burke, VA, 22152 - fall or spring or does it matter? And is there a certain size tree that is best to purchase for greatest chance o...
view the full question and answer

Planting Mountain Laurel grown from seeds in Argentina
April 09, 2014 - Hello, I was transferred to Cordoba, Argentina 2 years ago from San Antonio, the climate hereis similar to S. TX, anyway I brought some mountain laurel seeds with me and they have been in 2 gallon pot...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center