Rent Shop Volunteer Join

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

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

Identification of Cryptomeria japonica for homeowners association
May 09, 2007 - Good morning. We are wondering if Cryptomeria japonica trees can fit under the term "pine like". We used the term pine like when asking for our home owners associations approval and we put in a Cr...
view the full question and answer

Suggestions for alternatives to invasive, non-native English ivy
August 17, 2006 - Can English ivy be planted in a pot, kept oudoors, and expected to endure our Maryland winters?
view the full question and answer

Difference between Convallaria majalis and Convallaria majuscula
May 17, 2012 - How do you tell the difference in the native convallaria from the European species?
view the full question and answer

Bastard cabbage in Austin TX
March 17, 2012 - Not sure if this is the forum to address this; but is there any effort out there to do something about the bastard cabbage taking over Austin? Especially on MoPac where you can hardly see the bluebon...
view the full question and answer

What is hollowing out my rosebuds in Austin, TX?
April 28, 2012 - I recently noticed some of my rose buds had been hollowed out from the inside. I have seen no evidence of insect though. What do you think it is and how can I treat the problem?
view the full question and answer

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