En Español

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
10 ratings

Saturday - January 30, 2010

From: Rusk, TX
Region: Select Region
Topic: Non-Natives
Title: Yellowing branches on non-native sago palms after freeze in Rusk TX
Answered by: Barbara Medford

QUESTION:

My Sago Palms experienced a good freeze. Now they have a multitude of yellowing branches, in fact most of the plant is yellow. Please advise what to do to save my plants. They are about nine years old and very sizable.

ANSWER:

The Lady Bird Johnston Wildflower Center is committed to the care, protection and propagation of plants native not only to North America but to the area where they are being grown. Cycas revoluta,  Sago Palm, is a subtropical, native to the southernmost islands of Japan, an area of high rainfall and warm temperatures. The Sago Palm (not really a palm, but a cycad) is hardy from USDA Hardiness Zones 8 to 10. Rusk is in Zone 8a, but the whole country has had most unusual cold weather recently. Here is an article from Floridata that might give you some clues on what to do about the yellowing branches. Please note this article's warning about the toxicity of the entire plant.
 

More Non-Natives Questions

Identifying problem with non-native plumbagos in San Antonio
November 21, 2009 - Barbara Medford answered my question on plumbagos..we have the ones that grow crazy in TX (not sure which species, but w/ the bright blue/purple blooms..). I have pictures and wasn't sure where to se...
view the full question and answer

Non-flowering mimosas in Texas
July 08, 2008 - I have two mimosa trees, about 3 years old. Both were grown from volunteer seedlings. Neither have flowers nor have they produced seed pods. Are they too young or do they need a source of pollenation...
view the full question and answer

Plants to grow under elm tree in Amarillo TX
May 01, 2014 - I have a large elm tree and I can't get seem to get anything to grow under it. I was wondering if there are any shade-loving groundcovers that you would recommend (have tried English Ivy, hostas, an...
view the full question and answer

Yellowing leaves on non-native Betula pendula
July 03, 2008 - I live in Puyallup, Washington. I purchased and planted a weeping birch on June 21, 2008. For the first few days all seemed well and the tree seemed to be settling in to its new home. Less than e...
view the full question and answer

Does non-native Crown of Thorns cause cancer?
August 24, 2013 - Does the plant, Corona De Cristo (Crown of thorns) cause cancer?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center