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

Wednesday - October 08, 2008

From: Yakima, WA
Region: Northwest
Topic: Invasive Plants, Vines
Title: Care for a Campsis radicans in Yakima, WA
Answered by: Barbara Medford

QUESTION:

I have a Campsis radicans it is in a 7" pot and the plant is 20" tall. It was a clipping given to me by a lady that is now out of town. My question is: I live in zone 6a so do I leave it in the pot indoors/outdoor or plant it in the ground before the frost/snow comes? Please help, I've looked everywhere online for the answers.

ANSWER:

While our Native Plant Database does not show Campsis radicans (trumpet creeper) as native to Washington, this USDA Plant Profile map shows that it does grow there.  This is definitely not an indoor plant, as it can grow very aggressively and take over an area. You might also want to read this Dave's Garden Forum on Trumpet Vine. There are several negative comments on its growth habits, and from areas just as cold or colder than your Zone 6a. Unless you have a large area you want to cover, we would advise you to get rid of it while you can. And not into a compost pile, it will take that over, too. 

Granted, most of this aggressive behavior is observed in the South, and your colder temperatures and shorter season might help to control it. Another factor you should consider is that it can cause  uncomfortable skin irritation just coming into contact with the sap.

If you are determined to give it a try, plant it in the ground, now. You can mulch it to protect it from frost, if you wish. Be sure and place it in an area where it has a sturdy support, and away from wooden garages, decks, etc. Some of the comments in the Forum mentioned above were that it bloomed poorly for them in the cooler climates. If it's not going to bloom and attract hummingbirds, then it's not worth fooling with.


Campsis radicans

Campsis radicans

Campsis radicans

Campsis radicans

 

 

 

More Vines Questions

Identification of vine in California
September 19, 2010 - Recently a volunteer vine appeared along a fence line in my yard. It has grown rapidly, has small, vaguely heart-shaped leaves, tendrils to climb with and tiny yellow flowers. As the flower fades a fr...
view the full question and answer

Climbing vines non-damaging to walls in Round Rock, TX
July 07, 2009 - Will fig vine tendrils grow into a stucco wall? Is there any climbing vine that won't damage a stucco wall over time?
view the full question and answer

Groundcover for a Sunny, Steep Slope in Maryland
April 29, 2013 - I need a groundcover for a sunny dry steep slope in Towson, Maryland. The slope goes from the parking lot down to a deck area.
view the full question and answer

No Grapes on Vines in Sonora, CA
May 31, 2011 - We have lived in our home since 2002 and have a grapevine that grows beautiful green lush leaves and vines every year but never has produced grapes. What can I do to get some grapes on this vine?
view the full question and answer

Native vines for pergola in Denton, Texas
January 28, 2009 - We ve built a pergola under our Post Oaks and Winged Elms. The soil is sandy, as you would expect with post oaks. Are there any native vines, hopefully with a pretty flower, that I might coax into g...
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