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
2 ratings

Wednesday - October 31, 2007

From: Union Bay, BC
Region: Canada
Topic: Vines
Title: Trumpet vine care
Answered by: Barbara Medford

QUESTION:

I planted a trumpet vine in the early summer of this year. It grew about 3-4 ft. and seemed healthy. It is now Oct. 25th, and I just noticed that all the leaves seem to have shrivelled up and gone brown. Hopefully, it's simply gone into dormancy. Should I prune it back yet and, if not, when should I?

ANSWER:

Campsis radicans (trumpet creeper) is a native of North America, although it looks exotic enough and grows fast enough (in the American south) that you might think it a sub-tropical non-native. According to the USDA hardiness map, it is hardy from Zones 4 to 9, and is growing in Washington State. Assuming you are in the more temperate coastal area of British Columbia, you should have no trouble sustaining it. And, you should probably be glad you are there, where colder temperatures will inhibit it somewhat, as it can get out of control, grow 35 to 70 feet, and simply take over (sometimes damaging) buildings, fences and trellises.

The Trumpet creeper is a deciduous plant, and as far north as you are, you should certainly be expecting it to start dropping its leaves by late October. When it has done so, in the fall, is the time to trim it fairly close to the base. If it grows too vigorously during the warm season, you can prune it back just about any time to control growth and open up the foliage. See this Floridata site for more information on the culture of Campsis radicans . One warning: One of the common names for this plant is "cow-itch vine" which refers to the plant's ability to produce a skin irritant.

 


Campsis radicans

 

 

More Vines Questions

Invasive trumpet vine from Fredericksburg TX
August 03, 2012 - I have a large trumpet vine growing on a dead tree stump. My problem is that new baby trumpet vines are coming up all over my yard. I mow them, but is there anything I can use to prevent new trumpet v...
view the full question and answer

Transplanting Virginia creeper
September 02, 2008 - I have a large Virginia creeper plant approximately 15 feet in length. Is it possible to transplant the whole thing without killing it? If so how do I care for it after it has been moved? Thank yo...
view the full question and answer

Evergreen vine for Lake Jackson, Texas
March 06, 2009 - I have some lattice for privacy that I would like to cover with an evergreen vine or ivy. One is facing to the west, the other to the east. What would you suggest?
view the full question and answer

Eliminating a briar vine in American holly
July 22, 2011 - I have a wild vine (I was told it is a type of briar) living on my place. The root nest is like a potato. I have dug them up, I have sprayed them and I still am plagued with them. I have a beautiful A...
view the full question and answer

Vine to cover fence line in Bridgeport, Texas
December 04, 2009 - We are looking for a year round vine that will cover our fence line. Flowering and non-flowering.
view the full question and answer

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