Contact Us Host an Event 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: New York, NY
Region: Northeast
Topic: Diseases and Disorders, Soils, Watering, Vines
Title: Trumpet Vine Dropping Buds
Answered by: Anne Van Nest

QUESTION:

My trumpet vine is dropping its buds before flowering. This happened last year as well. Do you know what is causing this and what I can do to prevent it?

ANSWER:

Campsis radicans (trumpet creeper or trumpet vine) is generally as a tough, vigorous (sometimes too aggressive) vine that can handle conditions from full sun to shade and having a cold tolerance down to zone 4 (-30 F.)
When your vine starts to drop its buds it is signaling that it is under some form of stress – too wet, too dry, too windy.  While your vine can tolerate quite a bit of moisture fluctuations, dropping buds do signal that it isn’t happy with some aspect of the environment.  Trumpet vine grows best in average soils with regular moisture in full sun. It needs a good amount of sun to flower well. Excessive winds, poor soil drainage, water-logged soils, dense shade and excessive soil drying can all cause stress on the plant and bud drop. Start your investigation with the soil and vine roots to see if you can determine what is causing your vine to drop its buds.

 

 

From the Image Gallery


Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

More Soils Questions

Zinc tolerant plants for sunny area
June 08, 2012 - I have a very high zinc soil in an all day sun area. Any suggestions as to what kind of flower can I grow successfully? Zone 8 Thank you
view the full question and answer

Detoxifying soil from York England
August 15, 2012 - How do you neutralize toxic soil, it may have been contaminated by Foxglove Digitalis Purpurea? Thankyou
view the full question and answer

Is cement leaching into flower beds in Colorado Springs?
May 16, 2009 - I have posed this question to a number of garden centers in our area around Colorado Springs--only to rec. a repeated--"Gee, I don't know." When we moved to our new home there was a rock concrete ...
view the full question and answer

Trees for clay soil from Charlotte TX
August 25, 2013 - We have an area in our yard that even Esperanzas won't grow. It is near another that does great. Six Esperanzas are planted in a north/south row about with 10' between plants, the southern most plan...
view the full question and answer

Transplant shock in Chestnut Oak in Waukesha WI
September 13, 2009 - Bought and had nursery install a 4" diameter, 16' tall chestnut oak. Watered it as instructed-every 2nd or third day-hose stream size of my pinky for 45-60 minutes. It was planted in July. Just l...
view the full question and answer

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