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 Herbs/Forbs Questions

Non-blooming blue-eyed grass in Northeast Maryland
May 02, 2009 - I purchased blue eyed grass(sisyrinchium angustifolium)It was in bloom when I planted it, but has never bloomed since. It looks healthy and gets full sun, but for at least 3 years or more, it has neve...
view the full question and answer

Erosion Control with perennials for a shady Dallas bank
July 25, 2013 - Thank you for your help with turf or perennials on a shaded bank, 4000 sq ft, for the Dallas area that has good roots, grows in semi shade to shade, is on a steep bank so cannot mow, and flowers the l...
view the full question and answer

Planting wildflowers and ryegrass in RIverside AL
February 07, 2015 - Love the name, enjoyed a visit last spring. We repaired a retaining wall about 300 ft. and want to plant wildflowers on a strip 5 ft wide. Slope gentle to 1 in 3.5. Hauled in topsoil for fill. Can ...
view the full question and answer

Dwarf oyster plant dying in Sunrise FL
July 06, 2012 - WHAT WOULD BE KILLING MY DWARF OYSTER PLANTS
view the full question and answer

Source for book on Mimosa pudica from West Palm Beach FL
September 07, 2012 - Where can I find the TickleMe Plant Book -the guide for growing the sensitive plant mimosa pudica seeds?This is the plant that plays dead when touched.
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