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

Sunday - March 08, 2009

From: Schertz, TX
Region: Southwest
Topic: Vines
Title: What is wrong with my cross vine (Bignonia capreolata?
Answered by: Jimmy Mills

QUESTION:

I have a crossvine (Bignonia capreolata) that has grown and bloomed beautifully for about 7 years. Then last year the bloom was significantly less and the bottom growth almost nonexistant. The leaves developed dark red round spots on them. New growth looked chlorotic. I have given it iron chelate and Gardenville's organic fertilizer, along with some molasses and seaweed. No change. I sprayed it with potassium bicarbonate, thinking it had a fungus or mildew. No change. It gets about three quarters of a day of sun. The only pruning I've done is at the top to keep the vine off the roof. It is planted at the roof dripline, so it gets water whenever it rains, plus I soak around my foundation. This spring it is looking really bad. I don't want to lose it. What is going on?

ANSWER:

One way to approach this is to try to determine what has changed with the plants growing conditions since year seven. Cross vine, Bignonia capreolata (crossvine) grows in moist, well drained soil and in sun or partial shade. Is the soaking of the foundation a recent addition? Receiving too much water could affect the leaves. The red spots sound like a fungal problem. There also could be a pathogen (fungal or bacterial) attacking the  the roots in the soil. I'm going to suggest that you contact your Guadalupe County Extension Agent who can give you instructions for sending a plant and/or a soil sample to the Texas A&M Plant Disease Diagnostic Lab.


 

 

More Vines Questions

Plants to cover 1000 square foot wall in Virginia
March 29, 2013 - In Norfolk, VA, I want to cover a large (1000 sq ft) cement wall with a variety of maintenance free plant life. Any recommendations?
view the full question and answer

Seed planting of Crossvine from Orlando FL
September 12, 2011 - Seed planting of Bignonia capreolata - Tangerine Beauty. I have seed pods. Do I plant how deep and should I put in a plastic bag with a wet papertowel in the refrigerator and let it sprout? ...
view the full question and answer

Identity of night-glowing object in tree in New Hampshire
August 02, 2013 - I know this sounds crazy but last night when my husband stepped outside he noticed a purplish glow in one of the trees. At first he thought some kind of animal but when throwing a rock at it it did no...
view the full question and answer

Flowering vine for shade in Southern California
May 11, 2012 - Flowering climbing plant for shade in Palm Desert, CA.
view the full question and answer

Evergreen vine or plant that is non-toxic for horses in Pennsylvania
June 12, 2009 - I am looking for an evergreen vine or plant that can grow in shade and is not toxic to horses. I live 30 miles west of Philadephia. Can you help me? I would like to camouflage a wire horse fence. It ...
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