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

Leaf problems on Arizona ash in New Braunfels, TX
August 07, 2010 - I have an Arizona Ash tree that is 10 years old. The leaves have brown spots all over and then eventually the leaves curl up and fall off the tree. Is this a fungus or a bacterial infestation? What...
view the full question and answer

Sending a picture of an oak from Yorktown TX
December 02, 2011 - How I can I send a pic of my oak in Yorktown near Cuero?
view the full question and answer

Removal of invasive non-native Chinese wisteria
September 10, 2007 - I am going to be removing my ubiquitous chinese wisteria very soon (the method I'm going to use is undetermined). If I decide to use Round-up on the cut-stem (which may take more than one application...
view the full question and answer

Plants wilting too quickly in Toledo OH
May 27, 2012 - The garden I have had recent issues with plants wilting all too quickly. I would like to know what types of plants would be hearty for the climate in Toledo, Ohio. I have a partly sunny front yard and...
view the full question and answer

Shade trees not toxic to dogs in Kempner TX
August 21, 2013 - Dear Mr Smarty Plants, we are looking for shade trees to plant around our home in Kempner, Tx. I saw another family that asked a similar question but we have dogs and holly or oak trees are toxic (my...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center