Contact Us Host an Event 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

Tuesday - April 27, 2010

From: Roswell, GA
Region: Southeast
Topic: Diseases and Disorders
Title: Yellowing of Leyland Cypress in Roswell, GA
Answered by: Barbara Medford

QUESTION:

We paid for 12 foot naylor blue leyland's to be planted behind our home. This is their first season in the ground here - they came from a tree farm - there is yellowing on some of the branches and we're concerned about their health. Mostly we are not educated enough about these particular trees. How much of this could be due to the packaging/transfer/planting..etc?

ANSWER:

The "scientific" name of this plant is xCupressocyparis leylandii 'Naylor's Blue.'  Here is some information about the plant from the University of Florida Extension. 

This is a non-native  genus hybrid (that's why the "x" before the name) between Chamaecyparis and Cupressus. While some of the forbears of both genera are native to North America, hybridization puts them out of the range of our expertise at the Lady Bird Johnson Wildflower Center. We are committed to the use, protection and propagation of plants native to North America as well as to the area where they are being grown. 

We can tell you that this plant is hardy from USDA Hardiness Zones 6 to 10a; Fulton County in northwest Georgia, is Zone 7a to 7b, so the trees should be fine there in terms of climate. Some of the references to disease of this plant that we found were canker and they are often bothered by bagworms. If this tree is being widely grown there, others have likely had the same sort of problems. You might contact the University of Georgia Cooperative Extension Office for Fulton County to see if they have any experience with problems in this tree. 

Pictures from Google. 

 

 

More Diseases and Disorders Questions

Control of Fusarium wilt on Wax Myrtle
March 05, 2011 - Do you have any new reports on how to control the Fusarium Wilt disease to Wax Myrtle Plants?
view the full question and answer

Rejuvenating old Lindheimer muhly clumps
October 02, 2015 - I've got two clumps of Lindheimer's muhly in full sun in the western (limestone) part of Austin. I'm thinking they've been there for the past 8 or so years. In the past two or three years, the g...
view the full question and answer

Brown flakes on prickly pear in Los Angeles
June 03, 2008 - I live in Los Angeles CA. I have desert type plants in my landscape. I have prickly pear cactus that have developed some light brown, almost golden flakes on the skin of the pads. I believe it is call...
view the full question and answer

Brown rings on grass under live oaks in Austin
June 13, 2013 - There are brown rings in the grass at the dripline on several Live Oak trees in our neighborhood. What causes this? The trees appear healthy.
view the full question and answer

Cenizo dropping leaves from Corpus Christi TX
February 20, 2014 - Leucophyllum frutescens:I planted a Texas sage hedge in September of 2012. One of the plants is dropping its leaves. It is situated at the corner of an L-shape at the end of drive and corner of road. ...
view the full question and answer

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