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News and updates from the statewide UC Master Gardener Program office.
by Judy Crall
on July 2, 2014 at 3:01 PM
Grossmont College put this in a couple of years ago and the invasiveness of this plant is quite evident.
by Gene Lilly
on July 6, 2014 at 4:40 PM
I planted this a few years ago and after a couple of years, it was evident to me that it was invasive. I pulled it out and am keeping an eye out for new starts, and pulling them up. This plant can get away from you quickly. Glad to see it on the invasive list.  
Gene Lilly, Nevada County
by Rita Alvarez
on July 7, 2014 at 3:34 PM
In your list of recommended alternatives, Muhlenbergia cappilaris' discription includes "Adverse Factors: May self sow". Can you please tell me how difficult is it to keep under control? I think it is a lovely plant and think it will look great on my foothill property. Thank you for sharing the alternative List.
by Christina Moon
on June 2, 2015 at 9:03 AM
Haven't seen this plant as a threat to pasture grasses here in Texas. I definitely consider your information as a warning though! Any research/information on this species in Texas?
by Kathleen Pelley
on June 30, 2015 at 12:53 PM
This was recommended to me by a nursery in that it is a true grass. My mentally ill neighbor dumped a huge amount of bread leaf weed killer in my yard and I thought that I could use an ornamental grass to deal with the problem until the effects of the pesticide gradually disappeared. Are there other true grasses that are not as invasive that I could use.
by John Londono
on August 28, 2015 at 9:15 AM
How can I tell if this is growing in my yard? Just compare to an internet picture?
Reply by Melissa G. Womack
on September 8, 2015 at 11:57 AM
Hi John,  
You can e-mail a photo of the grass in your yard to your local UC Master Gardener Program ( and a volunteer will be able to help or you can bring a sample into your local UCCE office.  
Best, Melissa
by zz
on November 10, 2015 at 8:20 AM
I live in Northern New Mexico. I began with 1-2 Mexican Feather Grasses 10 years ago and now have dozens all over my yard. They are beautiful here but are invasive. I pull hundreds of seedlings each year. I also comb the grass when they set their seed heads to reduce seedlings. Combing works well on this plant and also removes dead growth. My yard would not be as beautiful without these stunning grasses.
by Glenda Graham
on May 15, 2016 at 7:51 PM
I for one believes that Mexican feather grass is beautiful.  
Deer grasses, mulenbergia capilaris and mulenbergia rigens both look shabby after two years. Shame on you, PlantRight for discriminating  
against a perfectly beautiful grass with flowing feathery stems that sway in the breeze. Keep your Mulenbergia and stop cutting off the supply of Mexican feather grass to nurseries!!!!!!
Reply by Melissa G. Womack
on May 31, 2016 at 10:51 AM
Hi Glenda,  
We understand your love for Mexican Feather Grass and we agree with you that it is indeed a beautiful plant. While Mexican Feather Grass is beautiful you can not simply ignore the potential impact that it has as an invasive. It is a vigorous grower that crowds out native grass species, putting California's diverse landscape at risk. PlantRight and the UC Master Gardener Program work hard to make sure the choices we make in our home landscapes are sustainable and don't negatively effect our fragile environments. If you would like to contact me directly to discuss feel free to email me at  
by Michael Butler
on June 5, 2016 at 12:32 PM
This stuff is terrible. Some Mexican feather grass was originally planted in some landscaped areas on my property and now it has invaded and taken over, displacing the original grass. I try to pull it wherever I see it growing, but once it has invaded the lawn area it seems almost impossible to get rid of it since it intertwines itself with the original grass.
by Fawn Craig
on July 3, 2016 at 5:42 PM
I was wondering if it is invasive in pahrump nv or is it a plans I will actually be able to keep alive here? We are zone 8 I believe.
Reply by Melissa G. Womack
on July 6, 2016 at 10:01 AM
Hi Fawn,  
It would be best to contact your local Master Gardener Program in Nevada. They would have more info about Mexican Feather Grass and if it has invasive characteristics in your area.  
Best, Melissa
by rae ann anderson
on October 18, 2016 at 4:58 PM
we live in an oak woodland in the hills of Templeton, Ca. We are on a well and with the drought, it is tough to keep anything alive. We have some of this; it lives, looks pretty, and has never spread.
by Tapestry
on January 12, 2017 at 12:30 PM
Native grasses the key word. Californians have this prejudice about plants that have were sowed a couple of hundred years ago; refuse to call them native plants. My rule of thumb is it doesn't grow it was never intended to be a native plant. You can stop propagation by cutting back its flowers before they go to seed.. simple enough.  
Today I bought 5 of these plants for my landscape that can take full hot sun that don't attract hornets to nest. Need to go back tomorrow and get more before the 'edict' reaches this state.
by Nancy nevola
on June 25, 2017 at 7:54 AM
I live on Long Island and planted the grass over 2 years ago.  
While it's grown and looks beautiful, it has not spread at all. In  
fact I planted 4 more last year and only 2 have taken. I appreciate  
your concern for where you live, but apparently this is not the  
problem in the northeast. Maybe you can try and limit distribution  
to the states where it is known to be invasive so the rest of us  
can enjoy this beautiful plant.
by Laura Starr
on August 14, 2017 at 10:05 AM
Invasive it may be here in SoCal but it will grow where nothing else will. So choose weeds, bare dirt or Feather Grass. I dont find it invasive in urban gardens if you crewcut the ends before the seeds can fly out. It is beautiful IMHO. No water needed either.
by Matt
on August 29, 2017 at 2:05 PM
Sure wish someone had told my designer about this before our garden installation last year. Spreads insanely fast in C zone 9B. Grrr.
by Ms. Hayes
on October 18, 2017 at 3:21 PM
I'd like to add a note for those outside CA asking about this grass. While Nassella tenuissima is an invasive species in California, this grass is native to west Texas and southern New Mexico. More specifically, this grass is native to the trans-Pecos mountain region of the Chihuahuan Desert.
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