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 - 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 Trees Questions

Shoots sprouting around base of liveoak tree
April 18, 2008 - I have a Live Oak that was planted in my yard about 15 years ago. In the last several years, small shoots have been sprouting up around the tree base, are getting more dense and spreading into the gr...
view the full question and answer

Problems with Shumard Oaks and Crepe Myrtle in Cooke Co. TX
September 07, 2013 - I have a Shumard Oak Tree that has been in the ground approx. ten years. It has done great, even passing up some of my older Shumards. In August it began to lose its leaves at an alarming rate. They a...
view the full question and answer

Live oaks exhibiting white foam spots from Round Rock, TX
June 08, 2014 - We have several native very large Live Oak in our backyard, and this summer we have noticed white foam spots on the branches. We live in Round Rock next to the Williamson County Park. The spots look...
view the full question and answer

What's attacking my Nellie Stevens Holly plants in Iredell, TX?
June 27, 2011 - I just bought 10 Nellie R. Stevens holly bushes and planted them as a screen. The leaves on some of the plants are at least half white - not yellow but white. Apparently they were like that when I b...
view the full question and answer

Is it wise to cut suckers from live oak branches in April in Austin
April 07, 2010 - My live oak branches are filling with suckers and I would like to cut them now, April. Is that wise?
view the full question and answer

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