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?


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

Wednesday - May 05, 2010

From: Corpus Christi, TX
Region: Southwest
Topic: Non-Natives
Title: Non-native oleander failing to thrive in Corpus Christi
Answered by: Barbara Medford


I live in South Texas (Corpus Christi). My husband planted Red Oleander in partial to full sun about 1 1/2 weeks ago. They are watered by our sprinkler system. They have recently started to bloom, but now the leaves are turning yellow with some brown/black spots and they are falling off at an alarming rate. What is it and what can I do to fix it?


This article from Floridata will give you some information on Nerium oleander. Please be sure to read the Toxic warning at the bottom of the page. All parts of this plant are toxic, and it is not even safe to burn it, as the smoke retains the toxicity. It is native to North Africa. The Lady Bird Johnson Wildflower Center can only answer questions on plants native not only to North America but to the area in which those plants are being grown. For more information on the toxicity, read this Howstuffworks.com article on The Top 5 Most Poisonous Plants.


More Non-Natives Questions

Absence of blooms in non-native Rosa rugosa
June 30, 2008 - I have a rosa rugosa in my yard that was here when I moved in..and it has never bloomed. It is in a sunny spot, but there are never any flowers..not even a single bud on this trailing plant. I cut it ...
view the full question and answer

Non-native bermudagrass dying under non-native globe willow in Granbury TX
July 14, 2010 - We have a beautiful globe willow in our back yard with bermuda grass. All the grass is thinning out or dying under the tree. What can we do, is there another glass we could use that blends well with...
view the full question and answer

Will a non-native smoke tree, Cotinus coggygria, be harmful in Utah
May 08, 2009 - Can one plant a smoke tree in Utah without causing and harm to the environment? I'm worried that this plant may be a species that could cause a problem since I believe it is not a native plant.
view the full question and answer

Slow growing, non-native Viburnum sandanqua in Deland FL
April 05, 2010 - Hi. I live in central FL, and planted sandankwa viburnum as a hedge 3 years ago. I was told they would grow quickly, but they are growing very slowly, although they look healthy with deep green leaves...
view the full question and answer

Smarty Plants on Walter Ernest Jones
February 24, 2005 - My parents are both huge gardening fans and for a mothers day present I would like to find a plant for her garden that has a connection with "walter ernest jones". Any part of this name would be gr...
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.
© 2015 Lady Bird Johnson Wildflower Center