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
1 rating

Tuesday - September 04, 2007

From: La Place, LA
Region: Southeast
Topic: Diseases and Disorders
Title: Problems with purple passion flower
Answered by: Joe Marcus

QUESTION:

Hello, I live in La Place, Louisiana (30 miles west of New Orleans). In March 2007, I planted a purple passion flower (maypop). During the spring it thrived and was covered with brilliant green leaves and many blossoms. But now I am experiencing some problems. My question concerns the leaves. They started out lush and green, but now are pale and have become almost yellow. Some of them have dark spots and holes. Some have dried up and fallen off. The plant is in partial shade, and I keep the soil moist, but not soaked. The vine is in a very large planter and I planted it in Miracle Gro potting soil. It has a trellis to climb. The plant is still growing new leaves and blooming, but the older leaves look really bad. Any ideas why this happened? Could this be some sort of fungus or insect? I'd like to keep the new leaves from ending up like this. I appreciate your assistance!

ANSWER:

The possible causes of the leaf problems you describe are numerous. The yellowing foliage could be caused by too much water, too little water, sucking insects such as aphids and scale, other predators such as thrips and mites, fungal diseases or simply normal aging. The dark spots and holes can be signs of fungal diseases and/or chewing insect like grasshoppers or caterpillars or snails and slugs. Carefully examine the effected leaves (especially the underside) for tiny insects or mite. You may need a magnifying glass to see some of them. Check your plants at night for night-working predators like slugs.

To be sure of what is afflicting your vine you should contact your state's Cooperative Extension Service for a positive diagnosis.

 

More Diseases and Disorders Questions

Repair of broken branch stump on pecan tree
July 18, 2007 - Hi Mr. Smarty Plants, big fan. Recently one of my pecan trees had a large branch break off, about 4 or 5 inches in diameter. The strange part was there was no clear sign of what caused the damage, i...
view the full question and answer

What is the sticky stuff coming out of the trees in Austin?
October 06, 2009 - Hello - I live in Austin TX, and in the past half month or so, have been noticing much sticky, sweet sap being exuded from trees. In a normal year I only notice the crepe myrtles doing this, but this...
view the full question and answer

Problems with Eastern hemlock in Greenville SC
July 02, 2009 - Dear Mr. Smarty Plants, I have a beautiful, young, 5 and a half foot tall Eastern Hemlock. I purchased and planted it two years ago in the fall. It has been doing very well all this spring. And ne...
view the full question and answer

Problems with wax myrtle in Roanoke, VA
August 20, 2009 - Our Wax Myrtle bushes tend to lose all their foliage during the Winter months and each year seem to flesh out their leaves less with each passing Spring. One bush never returned and save for one branc...
view the full question and answer

Recently planted Chinquapin Oak with browning leaves in Marlin, TX.
July 31, 2012 - We planted a Chinquapin Oak this in March 2012. As of July 21, 2012, the tips of the leaves on the lower branches are turning brown. We cannot see any insects. There does not appear to be any fungu...
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