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

Sunday - April 26, 2009

From: Greenwell Springs, LA
Region: Southeast
Topic: Non-Natives
Title: Thorns on non-native orange trees in Greenwell Springs, LA
Answered by: Barbara Medford

QUESTION:

Navel orange tree has thorns, why is this?

ANSWER:

The orange (Citrus sinensis) is a hybrid, possibly of pomelo (Citrus maximus) and tangerine (Citrus reticulata); it originated in Southeast Asia. As such, it is out of our area of expertise at the Lady Bird Johnson Wildflower Center, where we concentrate solely on plants native not only to North America but to the area in which they are being grown. This Floridata website, Citrus Sinensis, has more information, and specifically says, "The twigs on many orange cultivars are thorny."
 

More Non-Natives Questions

What variations of non-native Lavender will grow in Montgomery County TX
June 18, 2011 - I live in East Montgomery County, Texas. What varieties of Lavender grow best in my area? I had some success with Providence variety and Spanish variety. I would like to grow more varieties if possi...
view the full question and answer

Eliminating gift plant from flowerbed
June 20, 2010 - A neighbor gave me cuttings of a lush green plant with a blue flower with a yellow center that is only open in morning. It has become very invasive. I cut it back and dug at least 6-12" deep to get t...
view the full question and answer

Inadvisability of allowing native orchids to cross-breed
May 17, 2006 - Hello LBJ Native plants helper! This is the perfect place for me to ask a question that has been very perplexing to me. I live in Northern California and am doing research for naturalization of the te...
view the full question and answer

Native climbing rose for Austin
April 25, 2010 - Is there such a thing as a native climbing rose that would do well in Austin?
view the full question and answer

Plant Identification from Honolulu HI
April 24, 2014 - We have a ground cover in our Honolulu garden that I have been told is Watermelon Plant. (Not the fruit). We would like more, but cannot find it or the proper name for it. Aprox. 6" round leaf. 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
© 2014 Lady Bird Johnson Wildflower Center