En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Yellowing foliage on a lemon cypress from St. Charles MO

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 - May 22, 2011

From: St. Charles, MO
Region: Midwest
Topic: Diseases and Disorders, Trees
Title: Yellowing foliage on a lemon cypress from St. Charles MO
Answered by: Barbara Medford

QUESTION:

I recently received a lemon cypress tree as a gift. After about a month we transplanted it outside and the foliage turned from a light green to a yellow color. Is this normal? The tree doesn't appear to be dead because I can grab the foliage and lightly pull and it doesn't come off and feels pliable. The location that its in probably gets 8-10 hours of sun a day. Is that too much?

ANSWER:

The Lemon Cypress is a cultivar called Goldcrest, or Golden Crest, of Cupressus macrocarpa (Monterey cypress). You can read more about the tree from Floridata.com. Here are some intructions for outdoor care from ShootGardening and you can find care instructions for indoor Cupressus macrocarpa at indoor-plant-care.com and from the TopiaryShop.

Be sure and read all of our webpage on this plant by following the first link above. According to that information, it only grows natively in California, on the coast. We have no idea if it will even survive in your location in Missouri. We suspect that the yellow foliage is perfectly normal, as the leaves do turn yellow, ergo, the name 'Goldcrest.' In terms of the amount of sun that is appropriate, here are the Growing Conditions from our webpage on that plant. We consider "sun" to be 6 hours or more of sun a day.

Growing Conditions

Light Requirement: Sun
Soil Description: Well-drained soil.
Conditions Comments: Tremendously susceptible to a canker that kills the tree, especially if it is planted away from cool, coastal breezes. Tolerant of salt spray. Older trees are drought-tolerant.

Pictures of Lemon Cypress from Google

 

More Diseases and Disorders Questions

Problems with non-native zucchini in Muskogee, OK
July 23, 2011 - In the awful heat of this summer I am still getting zucchini to produce. But, once it grows about 3 inches, it gets yellow on the ends and dies. Am I watering it too much? (I have sprayed for bugs ...
view the full question and answer

Problems with non-native weeping willow from Hazlet NJ
July 03, 2013 - Leaves turning yellow on weeping willow planted in May. What causes this and how can I fix it? Mother's Day gift after SANDY uprooted huge tree.
view the full question and answer

Firecracker plants not growing in Ft. Worth
June 09, 2010 - I live in Fort Worth, TX and last fall planted several firecracker plants. It's now June and they're not growing. How can I tell if they are still alive?
view the full question and answer

Problem with Habiturf. Is it dormant or dead?
July 24, 2013 - We planted habiturf in spring 2012. It's beautiful. But since last summer, we have had one area that seems to go dormant much more rapidly than the rest, even though it receives the same amount of ...
view the full question and answer

Chlorotic disease in scrub oak from Katy TX
July 04, 2013 - Please tell me how to treat my scrub oak as it has chlorotic disease. Parts of the tree are fine and others have yellow leaves. It has not been injured in any way.
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