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
3 ratings

Thursday - October 23, 2008

From: Great Neck , NY
Region: Northeast
Topic: Container Gardens, Water Gardens, Herbs/Forbs
Title: Overwintering a Juncus effusus in Great Neck, NY
Answered by: Barbara Medford

QUESTION:

Can I over winter a juncus effusus spiralis indoors or must it be kept outdoors? Whether indoors or outdoors, what is the proper way to keep it alive during the winter months?

ANSWER:

Juncus effusus (common rush) is native to New York and is hardy from USDA Zones 4 to 10. It appears that Great Neck, New York is in Zones 6b to 7a, so the plant should certainly survive outside. Juncus effusus 'Spiralis' is a selection for horticultural use, low growing with strongly spiraling stems. According to this Floridata article on Juncus effusus, it is really better to allow the plant to freeze back, remaining outdoors during the winter, because the stems (there are no leaves) will come back much stronger and better-looking. In milder climates (such as indoors) the stems will get brown and less attractive-looking, and will need to be trimmed. However, this page from Blue Stem Nursery on Lesser Corkscrew Rush refers to it as a plant that can be kept in a terra cotta pot and double as a winter houseplant. We would imagine the soil in the pot would need to be kept pretty moist, but we did see a number of illustrations of the plant in pots and indoors. 

Pictures of Juncus effusus 'Spiralis'

 

More Container Gardens Questions

Planting a container of wildflower seeds in Dallas
September 20, 2004 - I have purchased a 1 # container of wild flower seeds in North Dallas. When can I throw these seeds in a nearby field, & is it advantageous to do it during a rain?
view the full question and answer

Patio plants suffering from heat in Austin
August 22, 2010 - My patio plants are burning up from the intense sun of Austin's August. Last year it even burned the leaves. Besides moving 40 plants to a shadier spot do you have suggestions on how to protect the...
view the full question and answer

Livestock Watering Tanks Used for Container Gardening at the Lady Bird Johnson Wildflower Center
September 17, 2011 - We would like to use livestock watering tanks like the ones use the the Wildflower Center for plantings in our backyard in Plano, Texas. We have found some to purchase in McKinney, Texas. What do we n...
view the full question and answer

Care for indoor Lemon Cypress
November 30, 2008 - How do I care for an indoor Lemon Cypress tree?
view the full question and answer

Shrub that will grow outside in Zone 5 from Millbrook NY
April 21, 2012 - Is there any shrub, tree or other sort of plant that will grow well in zone 5 in a very large container outdoors?
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center