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

Possibility of camas being raised in Edmonton, Alberta
September 18, 2007 - I live in Edmonton, Alberta, and wish to find out how "Camassia (leichtlinii white) will fare in this zone.
view the full question and answer

Plants that will do well in a water retention basin in White Stone Virginia
May 23, 2011 - I am looking for plants to grow under pine trees in a water retention basin. The pine trees line the basin. When it rains it will hold water for about two to three days before evaporating. I have p...
view the full question and answer

Ligustrums planted last summer are doing poorly in Houston, TX.
March 06, 2012 - I planted large mature ligustrums trees (~ 8 ft) last summer and the leaves are turning yellow and falling off. Can you please tell me what the cause of this might be and what we can do to prevent th...
view the full question and answer

Skunk cabbage for Houston TX
September 19, 2009 - Can you find skunk cabbage in the Houston, Texas area?
view the full question and answer

Controlling vegetation around retention pond in Williamsburg, VA
September 21, 2009 - We planted Juncus effusus around a retention pond and various native shrubs last year. We are having a problem controlling bramble,lespedeza and broadleaf natives from taking over and native trees(wil...
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