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 - March 10, 2009

From: Spring Branch, TX
Region: Southwest
Topic: Water Gardens, Planting, Herbs/Forbs
Title: Planting instructions for horsetail
Answered by: Barbara Medford

QUESTION:

Re: Equisetum hyemale L. Canuela, Horsetail, Scouring rush, Scouringrush horsetail I bought a 1-gal Equisetum hyemale for my seep/pond. In searching the web, I find conflicting planting instructions. All say invasive, plant in a pot. Then, some say plant in gravel (no soil needed); some say do not completely submerge; some say ok to submerge; some say submerge with just the lip of the pot showing above the water. Please help!!!

ANSWER:

We think the conflicting answers you are getting are just saying that there are a number of different conditions under which you can grow Equisetum hyemale (scouringrush horsetail). It will grow out of water, in gravel, if you wish and do just fine. It can fill up a pondside area and exclude weeds. If it is to be included in a water garden with other plants, it probably should be confined in a pot, since it is aggressive. All the advice you have been seeing seems to be correct, except that we wouldn't completely submerge the whole plant, just on the grounds that it needs oxygen, and besides, where would the dragonflies sit?


Equisetum hyemale

Equisetum hyemale

Equisetum hyemale

Equisetum hyemale

 

 

More Herbs/Forbs Questions

Can non-native coleus grow in mulch from San Antonio
May 12, 2013 - Can Coleus plants grow in Mulch only?
view the full question and answer

Shriveling and dying of non-native impatiens
July 14, 2008 - Several years now many of my impatiens after a month or so seem to shrivel up and eventually die. They are planted in a row and not all are affected. I am not noticing any slug evidence which I would...
view the full question and answer

Trees for cutout in driveway in Houston
November 12, 2010 - I live in central Houston. I have a new driveway with a cutout of 4' x 8'. I would like to plant a shade tree that will not break up the concrete. What do you recommend?
view the full question and answer

plants for a rain garden's moist area in Central Texas
January 15, 2015 - I am looking for local natives to plant in the wet portion of a rain garden/bioswale. Can you help, please?
view the full question and answer

Need a pretty ground cover to control erosion in Rigdeway, SC.
June 09, 2012 - What is a fast, pretty ground cover blanket to control erosion on steep hill. gets full sun.
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 | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center