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
1 rating

Tuesday - September 29, 2009

From: Eagan, MN
Region: Midwest
Topic: Container Gardens, Shrubs
Title: Wintering a Lemon Cypress tree in Eagan MN
Answered by: Barbara Medford

QUESTION:

I Have a 2 1/2' Lemon Cypress Tree. I'm wondering if I can leave it outdoors for the winter, if not, how would I winter over indoors?

ANSWER:

We just had a similar question from Michigan, so we're just going to quote ourselves, with changes as appropriate:

Lemon cypress is a cultivar of  Cupressus macrocarpa (Monterey cypress) called 'Goldcrest.' According to this USDA Plant Profile, the parent plant is endemic to California, growing nowhere else naturally but the Monterey Peninsula of California. The Growing Conditions of this parent plant are:

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.

In searching further for information on the cultivar, we learned that it is hardy from USDA Hardiness Zones 7 to 9, or can be grown indoors in a cool, sunny window. However, since it grows in an upright, conical shape with good yellow foliage and can get to be 30 ft. tall, you would need a pretty big house for that. Dakota County, Minnesota is in Zone 4b, with an average annual minimum temperature of -30 to -25 deg. F. Unless you have a greenhouse for wintering this plant over, or want to preserve it in a sunny indoor space, putting it out in the summer, we don't see how you can leave it outside in the winter.

From another previous answer, here is information on caring for the Lemon Cypress indoors:

"You can read more about the tree from Plants for a Future, Floridata.com and from the Florida Cooperative Extension Service. 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

Pictures of lemon cypress from Google.

 

 

More Shrubs Questions

Planting Artemisia Cuttings in Texas
September 29, 2014 - I've rooted a number of artemisia plants in water and have transplanted them to pots. They grow so very well in our dry drought-stricken soil and need very little water. I'd like to transition these...
view the full question and answer

Smarty Plants on lantana in Dallas
September 14, 2005 - For several years, the lantana plants in my backyard in Dallas grew and bloomed all Summer and Fall until the first real cold snap. I've loved having a native plant that didn't need constant care a...
view the full question and answer

Japanese Wineberry in Maryland
July 16, 2014 - Hello, we were at Cunningham Falls in Maryland and I can not identify this plant. If you could I would greatly appreciate it, thank you. It looks like a raspberry but the berries are inside small leav...
view the full question and answer

Groundcovers over roots in Roeland Park KS
June 18, 2013 - Large Hackberry tree (aprox 50+years) roots are popping up above ground making mowing under/around it impossible. Is there a plant, ground cover, something I can plant, or cover the roots with that w...
view the full question and answer

Evergreen vine for wall and long-blooming shrubs in San Antonio TX
May 04, 2014 - What is a good native vine that stays green all year to plant along a rock courtyard wall? Also what are native bushes that flower for the longest period of time? Thanks.
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