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
1 rating

Sunday - May 04, 2008

From: Silver Spring, MD
Region: Mid-Atlantic
Topic: Water Gardens, Herbs/Forbs
Title: The origin of Juncus effusus var. Big Twister
Answered by: Nan Hampton and Joe Marcus

QUESTION:

Juncus effusus, var. 'Big Twister' We're trying to figure out the nativity of this thing, and whether it is safe to plant in our very wet rain garden. Thank you for any assistance...

ANSWER:

Juncus effusus var. 'Big Twister' is really a cultivar of the North American native, Juncus effusus (common rush) and should be written as Juncus effusus 'Big Twister' without the "var.", the abbreviation for the more formal botanical variety. Apparently, the species occasionally produces spiral-stemmed individuals. Those have been propagated and are being sold in nurseries. You will also find them sometimes listed as Juncus effusus forma spiralis (or Juncus effusus f. spiralis or Juncus effusus 'Spiralis'). It’s usually referred to as corkscrew rush or, sometimes, spiral rush. As for it being "safe", it is a native so in that sense is certainly safe, but it will spread through its roots or stolons. If you don't want it taking over your wet area, you should plant it in submerged pots.

 

More Water Gardens Questions

Source for Saltmarsh cordgrass from Houston
April 16, 2013 - I work for a consulting firm and we are looking to do more of our wetland creation/restoration. Do you know where one can purchased Spartina alterniflora?
view the full question and answer

Plants for wet soils in North Carolina
October 03, 2009 - I'm looking for evergreen plants (shrubs or ground cover)that will tolerate wet conditions for the zone 8 area of North Carolina. The local garden centers here do not stock these types of plants, eve...
view the full question and answer

Note on pond over oak roots from Round Rock TX
December 23, 2012 - Thanks very much to Barbara for answering my question about the live oaks - covering parts of their root systems with a pond. Your answer inspired discussion, and we changed our pond plan and moved th...
view the full question and answer

Plants for pond, for incline and area with poor soil
April 23, 2012 - I have three plant recommendation questions for Austin, TX. 1. I have a large pond that I would like to put native aquatic plants in. What are some hardy aquatic natives I could put in? The pond ...
view the full question and answer

Need help replacing a non-functioning pond in Houston, TX.
March 30, 2010 - I have a non-functioning, shell-shaped, concrete pond in a shaded part of my backyard that has been a great place to grow mosquitoes since I got this place. I have decided that it is time for a chang...
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