Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Saturday - July 30, 2011

From: Austin, TX
Region: Southwest
Topic: Container Gardens, Pests
Title: Ants in outdoor plants in Austin
Answered by: Barbara Medford

QUESTION:

Live in Austin. The problem is THIS. Ants have invaded our outside potted plants- mandevilla, begonia , lemon tree and violas. The colonies are devouring the roots it appears. Please give suggestions on repellants. I'm concerned about the toxicity of some substances and poisoning my large outside potted plants. But we need get get them out and keep them out.

ANSWER:

Since we are not entomologists, we will refer you to some websites with what we consider pertinent information:

University of California Integrated Pest Management Ants

Gardenguides.com How to Drive Ants Out of Potted Plants

eHow Home Products that Keep Ants out of Plants

If we may add one point from personal experience: ants are farmers and their herds are usually aphids. If you find very small white spots on the bottom of your leaves or a white or black moldy substance, usually in the same area, you have aphids. The ants will fiercely protect their "crop" from natural predators. If you get rid of the aphids, the ants will have no reason to return.

University of California Integrated Pest Management Control of Aphids

 

More Container Gardens Questions

Smog-eating plants from Ft. Worth TX
September 30, 2012 - Looking for a list (40 >) of Native Texas Plants for Fort Worth Urban (Condo) that are Drought tolerant or (drip irr) and Fragrant and long blooming and eat up the city smog. Fort Worth is in a non-at...
view the full question and answer

Planting time, either by acorn or container grown tree, of Shumard red oak
April 12, 2006 - Hello, I have a question on when is the best time to plant shumard red oak. I live in Zone 7. thank you
view the full question and answer

Making Ruellia nudiflora thicker in pot from Tucson AZ
June 25, 2012 - Can Ruellia Nudiflora be propagated in the same pot as the parent plant? Can it be cut back to stimulate a denser plant? I have plants in several pots and would like to 'thicken' the plant. Tha...
view the full question and answer

Disappearing oranges from Satsuma orange in Austin
June 25, 2008 - I had many tiny future oranges on my Satsuma Orange Tree until a few days ago. Suddenly, all were gone except one. They weren't on the ground and the tree itself seems incredibly healthy. It is gr...
view the full question and answer

Plants for planting in gourds
March 15, 2009 - I enjoy painting dried gourds. This spring I got the idea to paint a gourd and cut holes in the side and plant some small blooming flowers. I have seen "hen and chickens" growing out of holes in the...
view the full question and answer

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