En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Removing nut grass and wild strawberry in Vienna VA

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

Sunday - June 13, 2010

From: Vienna, VA
Region: Mid-Atlantic
Topic: Invasive Plants
Title: Removing nut grass and wild strawberry in Vienna VA
Answered by: Barbara Medford

QUESTION:

Mr. Smarty Pants, How do I get rid of wild strawberry plants and nut grass in my large garden bed? I have rosemary and thyme already there and don't want to use a harmful pesticide (kids and pets as well).

ANSWER:

You aren't going to like this, but in both cases simply pulling it out again and again and again is the time-honored method. An organic approach, which we have never tried, is found in Gardens Alive Is Nutgrass Driving You Nuts? The problem, even with very intense organic or chemical pesticides, is that the rhizomes, deep underground, will hold nourishment for the plant for a very long time, usually permitting it to overcome attempts to do it in. If you pull off the leaves of a plant long enough, the roots will finally starve, because there are no leaves making food for the whole plant through photosynthesis.  If your ground is soft, there is no greater satisfaction than pulling out a long string of those tubers and destroying them. Unfortunately, there are always more a few feet away, and they will quickly grow into the vacated space. Cyperus rotundus is native to Africa, south central Europe and southern Asia. If we could deport it, we would. 

Pictures of Cyperus rotundus from Google

From our webpage on  Fragaria virginiana (Virginia strawberry):

"Virginia strawberry or wild strawberry is a ground-hugging plant rising from a fibrous, perennial root system. Hairy leaf petioles, up to 6 in. long, each bear a single trifoliate leaf. The hairy flower stalk gives rise to a loose cluster of small, five-petaled flowers followed by tasty, wild strawberries."

This means you have a similar problem to the nutgrass, in that the underground roots are perennial, and will live in the soil to send fresh new plants up. From Illinois Wildflowers, we learned that it is  considered a food plant, as well as a host to butterflies and other wildlife. No one seems too interested in getting rid of it. When you read about it, you realize it is much the same situation as the nutgrass, spreading by stolons and rhizomes. However, it apparently goes dormant in warm weather; that might be a good time to launch an attack. Or try making strawberry jam.

From our Native Plant Image Gallery:


Fragaria virginiana

Fragaria virginiana

Fragaria virginiana

 

 

More Invasive Plants Questions

Absence of grass around a willow tree in Georgia
December 22, 2008 - In the past three years my Willow tree has grown from a stick to a lovely tree. Unfortunately, the grass under and around the tree is gone. Nothing left but dirt. Is there a remedy?
view the full question and answer

Controlling Pickerel weed (Pontederia cordata) in British Columbia
March 10, 2009 - Hello, I am emailing from the west coast of Canada, Vancouver, and I have a plant question regarding a species you have listed on your website. We have recently discovered Pontederia cordata L. Pi...
view the full question and answer

Is conium maculatum safe for cataracts from Wewoka OK
September 12, 2009 - My doctor has prescribed conium maculatum for my cataract problems. Is this safe to use in the eyes?
view the full question and answer

Non-native eleagnus from Jesup GA
January 17, 2014 - An elderly farmer has told me about a plant called Alley Agnes, but I can't find any plant by this name anywhere. He doesn't know another name for it, says it's what everyone has always called it i...
view the full question and answer

Disposal of bulbs to control Arrowhead aquatic plant
August 29, 2006 - How can I kill Arrowhead permanently? I have sprayed repeated years with Roundup, Crossbow, etc., but the arrowhead comes back from the bulb the next year!
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