En EspaŅol

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
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

Friday - July 28, 2006

From: Benton City, WA
Region: Northwest
Topic: Container Gardens, Shrubs
Title: Protecting hibiscus from cold in Eastern Washington State
Answered by: Nan Hampton and Joe Marcus

QUESTION:

I recently purchased a Hibiscus Brilliant Red. I planted it in an area of my garden that will give it full sun for most of the day. In the Pacific Northwest where I live (Eastern Washington) it can get fairly cold in the winters. The summer's are in the high 80's to the low 100's from May until October. July and August the temps can get (and usually are) into the low 100's for several weeks at a time. I am concerned about our winters. Can I cover the Hibiscus during the coldest months? If so what woould I use to cover it? Thanks for your help.

ANSWER:

Hibiscus 'Brilliant Red' (Hibiscus rosa-sinensis) is a tropical hibiscus and will have to be protected in cold weather. It is recommended for USDA Hardiness Zones 9 and 10 and it appears as if you are in Zone 5 or 6. Covering may save it on barely freezing nights, but any cold in the mid 20's and below will kill it. It looks as if the average winter low temperatures in Benton City, Washington fall around 25° F; consequently, I doubt if it would survive the winter even with covering. Perhaps you can grow it in a very large container so that you could move it inside to a warm area to protect it during the winter.

 

More Container Gardens Questions

Native plants for a lizard terrarium
October 24, 2006 - My brother is setting up a terrarium for his lizard and wants advice on some species to put in the tank. He wants plants that generally fit the below description. Can you think of anything fairly c...
view the full question and answer

Moving potted plants from California to Georgetown TX
February 10, 2012 - Hi, I am moving from Gilroy CA to Georgetown TX, I have many potted plants I would love to take with me but I am not sure what would survive in my new location. These plants have been cared for so ma...
view the full question and answer

Plants for low light in Houston
April 21, 2009 - I moved from a home in New Jersey to an apartment in Houston, TX -inside court - low light. I can't keep houseplants alive., What do you recommend that I try here? Both inside the apartment and on ...
view the full question and answer

Hearty, bushy native plants for windowboxes in Abilene, TX
October 08, 2005 - I live in Abilene, Tx and am a horrible gardener. I would love to have window boxes with some sort of hearty bushy plant. Any suggestions, I'm at a total loss...? Thanks!
view the full question and answer

Sides for raised gardens
May 01, 2008 - I am wanting to put in raised gardens. What is the best product for the sides? Wood? If so, what kind? Thank you
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