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
2 ratings

Thursday - June 25, 2009

From: Toluca Lake, CA
Region: California
Topic: Non-Natives
Title: Problems with non-native Carrotwood tree in Toluca Lake CA
Answered by: Barbara Medford

QUESTION:

My Carrotwood tree leaves are turning yellow and curling down, Why? Also due to a bad trim, the outer limbs are dying. Can you tell me what is wrong? It is an old tree and I would like to save it!

ANSWER:

Due to the large volume of questions, we ask that you please limit your questions to topics related to North American native plants. This must be the season of bad luck for carrotwood, as this is the second question on this plant we have answered today. The first question was asking what the pesky nut-looking things were in their tree. We have excerpted the information from that answer.

"You don't need a spray, you need a hatchet. Quick, quick, get that tree out of your landscape and your life. Those nut-like pods are seeds, incredibly messy, as you already know, and they are being eaten by birds, who then sow them wherever, they will lie on the ground and kill your grass, and the tree itself is an invasive weed. At the Lady Bird Johnson Wildflower Center, we are devoted to promoting plants native not only to North America but to the area in which they are being grown. This plant is the poster child for invasive non-natives. It originated in Australia, Indonesia and New Guinea. We suggest that while you wait for the bulldozer to arrive, you read the following articles about places, including California, where it is already a menace." 

Plant Conservation Allliance Alien Plant Working Group Least Wanted Cupaniopsis anacardioides

Texas Invasives cupaniopsis anacardioides

Los Angeles Times Tree of the Week: Carrotwood Tree

 

 

More Non-Natives Questions

Mealybugs on non-native Lady Palm in Houston
November 30, 2009 - Rather than dabbing rubbing alcohol on the leaves of an indoor lady palm infested with mealybugs,since the infestation is widespread, would spraying the palm with the rubbing alcohol be effective?
view the full question and answer

Probably non-native crapemyrtle trees damaged by hurricane
January 15, 2009 - I have 5 crape myrtle trees. I live in Galveston, Tx and when Hurricane Ike came through in September the salt water I think killed them. They have not come back since then and are brown with no leave...
view the full question and answer

Problem with non-native bower vine (Pandorea jasminoides)
September 27, 2011 - I live in Temecula, CA I have grown pink bower vines before with great success. I recently purchased 2 bower vines and planted them on each side of a trellis in full sun. They flower but do not grow...
view the full question and answer

Transplant of non-native Lathyrus tuberosus in North Carolina
June 13, 2006 - I have a tuberous sweetpea vine that grows wild on our property. When would be a good time to move this plant to a better location?
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

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