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?


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

Tuesday - September 08, 2009

From: Ocala, FL
Region: Southeast
Topic: Non-Natives
Title: Blossoms blowing off non-native navel orange tree from Ocala FL
Answered by: Barbara Medford


Why do the blossoms blow off navel orange tree?


Due to the large volume of questions Mr. Smarty Plants has been receiving, we are asking that questions be confined to plants native to North America, which is the focus of the work done by the Lady Bird Johnson Wildflower Center.The orange tree is a native of Southeast Asia, and has been extensively hybridized, far out of the range of our expertise. We suggest contacting your University of Florida Extension Office for Marion County.

An excellent site on dealing with problems with the navel orange trees is this one from Texas Cooperative Extension site. Then, if you're really dedicated to find a solution, go to this site, "Diagnosing common citrus problems", and see what you can find that fits your situation.




More Non-Natives Questions

Identification of tree bought from a magazine ad
August 11, 2013 - I recently submitted the following question to Ask An Expert. They were unable to identify the plant. I hope you will be able to. Can you help me by either identifying this plant or advising me a...
view the full question and answer

Plant replacements for non-native invasives in Austin, TX
April 20, 2007 - I live in Austin, TX, I have a large lot and small house. I want to do some selective planting on the back half of my lot. Currently there are large live oaks, cedar elm. hackberry, cedar, Texas persi...
view the full question and answer

Dying non-native cleyera in Lafayette, LA
August 01, 2009 - Thanks for all the information. One of my six year old cleyera shrubs turned completly brown within two weeks, it is dead. Another is beginning to do the you think it was the recent dro...
view the full question and answer

What about Asian Jasmine and scrub oaks?
September 01, 2010 - Dear Mr. Smarty Plants, I have several clusters of native scrub oaks in my yard. I planted Asian jasmine under them many years ago. The trees look fine, but an arborist has told me that the Asian ...
view the full question and answer

Pruning of non-native nectarine tree from Lakeway TX
December 16, 2010 - Could you describe when and how a nectarine tree should be pruned? Or, give us a resource for such information? Also, when and what type of treatment/pesticide (?) should one use on it in the Austi...
view the full question and answer

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