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

Saturday - July 12, 2008

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Corona de Cristo, guest or pest?
Answered by: Damon Waitt

QUESTION:

We have had two recent speakers at the Austin Butterfly Forum with differing views as to whether Passiflora foetida is invasive in Texas. One believes that it's well-behaved and a a great butterfly plant; the other says that it should never be planted because it is highly aggressive. I assume there's some truth in both viewpoints. Can you provide any information about the conditions under which it is invasive?

ANSWER:

According to the USDA Plants Database, Passiflora foetida is both native and introduced to the continental United States. It can be also be found in northern South America and the West Indies and in South East Asian countries like Vietnam and on Hawaii. The Global Invasive Species Database (GISD) lists Passiflora foetida as a perennial herbaceous vine that originated from tropical America, and is now a pantropic weed climbing over low vegetation on roadsides and in other disturbed places, especially in the tropics. Because it forms a dense ground cover, it can prevent or delay the establishment of other species. It favors wet areas and disturbed sites but can tolerate arid conditions. The Florida Exotic Pest Plant Council lists it as an invasive plant.

In conclusion, if you are willing to manage its aggressive vegetative growth and properly dispose of any fruits that form, you will find it is an excellent larval host plant for the Gulf Fritillary. It seems more likely that it would be more agressive in the tropical environs from which it originated than in the dry climate of Austin, Texas.


Passiflora foetida

Passiflora foetida

Passiflora foetida

 

 

More Diseases and Disorders Questions

Navel orange disease problems
November 14, 2007 - I live in Glendale, Arizona. I hav a mature miniature navel orange tree. This year it has lost a considerable amount of leaves. Also the fruit all has a large yellow spot. It looks pitiful. What shoul...
view the full question and answer

Yellowing foliage on a lemon cypress from St. Charles MO
May 22, 2011 - I recently received a lemon cypress tree as a gift. After about a month we transplanted it outside and the foliage turned from a light green to a yellow color. Is this normal? The tree doesn't app...
view the full question and answer

Beetles in spineless prickly pear in Austin
June 05, 2010 - I have an enormous spineless prickly pear in my front garden. It's about 6 feet tall, and 6 feet wide. It has blossoming yellow flower. However, it also has large colonies of black beetle-ish bugs li...
view the full question and answer

Milky Substance on Salvia greggii
June 26, 2015 - The Salvia greggii that I have in the front yard has a milky substance on it ... and the plants are not doing well. Is this some kind of fungi or disease? What can I do to "cure" it? Thank you! Lia...
view the full question and answer

White fuzz on Christmas tree from Lewisburg PA
January 04, 2011 - Our Canaan fir Christmas tree is now coated with white fuzz after being up for 4 weeks. The fuzz looks like spider webs, but it is also in clumps around the needles. When you rub your finger on 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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center