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

Promoting bloom of crossvine
January 05, 2008 - I planted a crossvine a couple of years ago and it has grown quite well, climbing well up the Mesquite tree it was planted under. However, it has never bloomed. I was really looking forward to those...
view the full question and answer

Use of non-native pothos for outside wall from Las Vegas NV
January 05, 2014 - I am in Las Vegas, NV. I live in a cottage-style apartment so I have a north facing porch with no one on the west so I get some there (and have an inherited cactus probably a yard all round) I would ...
view the full question and answer

Vine for limited space, part-shade fence in N. Texas
June 14, 2009 - I have a narrow strip of yard (about 3ft) between my covered patio and privacy fence. Since the fence itself lacks visual interest, I'd like to find a vine to grow on the fence to give the backgroun...
view the full question and answer

Growing Grapes in Southern Texas on an Arbor
July 02, 2014 - I've redirected several grape vines (from the top third of a broken oak tree) onto an arbor. The base of the vine is about 3 or 4 inches in diameter. Is it feasible to work with (prune) the smaller b...
view the full question and answer

Native plants for hanging baskets in Abilene
June 10, 2008 - I live in the DRY West Texas heat in Abilene. I'd like to put some hanging plants along my back fence. Preferably something that would attract butterflies. We have a pool in our back yard and almost ...
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