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

Problems with non-native weeping willow
April 17, 2009 - The trunk of my Weeping Willow tree has raised donut growths.The left base has decay. There is a large space between the base and the soil (no roots) and the wood is brittle. Large ants with a black ...
view the full question and answer

Coloration problems with non-native nandinas and queens wreath in Taylor, TX
February 25, 2009 - This year my nandinas are extremely red and my queen's wreath blossoms deepened in color before the first freeze browned them out. What would cause this? Thank you.
view the full question and answer

Transplanting care of Mayten tree (Maytenus sp.)
November 06, 2007 - I planted a Mayten tree 2 years ago. It's about 8 feet tall. The trunk is about 1-1/2 or 2" in diameter. The earth around it sunk and now there is a "bowl" that fills with water in the rain. I...
view the full question and answer

Eliminating invasive, non-native chameleon plant from Omaha NE
April 11, 2011 - I have been attempting to eradicate the chameleon plant in my gardens for 3 years. I have sprayed Round Up and covered with newspaper then mulch and it is coming back again this year! I am wondering...
view the full question and answer

Leaves on non-native Rose Cactus
January 30, 2009 - I have a Rose Cactus (Pereskia grandifolia). The leaves have all dropped off. I was wondering if this is normal in the winter. Also, is the pear shaped fruit edible.
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