Rent Shop Volunteer Join

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Thursday - July 25, 2013

From: Grants Pass, OR
Region: Northwest
Topic: Trees
Title: Will Cercis (Redbud) grow in Oregon?
Answered by: Anne Van Nest

QUESTION:

We live in Grants Pass, Oregon could Cercis grow here?

ANSWER:

You should be able to grow Cercis (redbud) in Grants Pass, Oregon.  But be sure to purchase a variety that is best suited to your region (or a cultivar based on the variety best suited to your region). 

There are three recognized varieties of Cercis canadensis (Eastern redbud) -- var. canadensis, var. texensis and var. mexicana. Each has different cold, heat and moisture tolerances.  C. canadensis var. canadensis is best suited to its native range of along the Atlantic coast to central Texas. A lack of water restrict the var. canadensis to the eastern half of North America.

 C. canadensis var. texensis (Texas redbud) has smaller, glossier leaves, is a smaller form, and can tolerate more heat and drought.

The third variety is C. canadensis var. mexicana (Mexican redbud) which has small, very glossy, wavy-edged leaves and is even smaller in height. 

Hardiness is not an issue as Grants Pass is in USDA Hardiness Zone 8b (15F to 20F). The Missouri Botanical Garden lists Cercis canadensis var. canadensis as being hardy from zone 4-8.  They indicate that C. c. var. texensis or var. mexicana can take more heat and less cold (zones 6-9). These are the ones you should put in your garden.  

The U.S. Forest Service also indicates that C. c. var. texensis is appropriate for Oregon.

 

 

More Trees Questions

Brownish haze on live oak leaves in Austin, TX.
October 09, 2009 - My live oak tree leaves are getting a brownish "haze" on them, almost as if they have been spray painted (lightly) with brown paint. I did use the oak wilt identifier and that is not at all what it ...
view the full question and answer

Rhododendrons for afternoon sun
September 10, 2008 - Thanks for your suggestion that I plant rhodedenrons in my Brooklyn garden. In fact, the only bushes I've planted in the past that have survived are rhodedenrons so your definitely right! Here's my...
view the full question and answer

Texas persimmon with scorched leaves from Austin
July 11, 2013 - I planted a Texas Persimmon seedling (five gallon) in my yard in early April. It is in a sunny, well-drained spot, and I have watered it regularly since planting. All was fine until the last weekend i...
view the full question and answer

Pin Oak Dropping Leaves Early
December 17, 2015 - I have a large pin oak that's losing it's leaves at this time. Is this too early? I have been watering the tree during the hot, dry weather and overall the tree looks healthy and has a good crop of ...
view the full question and answer

Wilting of Mountain Ash in Wisconsin
August 21, 2008 - What type of disease would cause a Mountain Ash to entirely wilt? The bark on bottom of tree is opening up and is spongy feeling. No sign of any disease until last month and it quickly wilted with b...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.