Florida Gardening forum: Torpedo grass (Panicum repens)

Views: 941, Replies: 7 » Jump to the end
Name: Ron Brooks
Middleburg, Florida (Zone 9a)
Daylilies Region: Florida
Image
homerduck
Oct 1, 2012 5:14 PM CST
Torpedo grass (Panicum repens) is the most aggressive weed I have in my garden. In my garden? Heck, once it got started, it is showing up everywhere. The root runners are down about 12 to 18 inches under the surface and unless you dig every piece of it up, it regrows at an even faster rate. I believe it came in in a purchased plant pot, because in 2000 when we moved into our home, the yard had zero torpedo grass. Does ANYONE have any methods of killing this scourge without killing everything it comes up in. It seems to specialize in coming up intertwined in the root system of another plant.
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Oct 1, 2012 6:07 PM CST
I am totally commiserating with you. Only digging out every inch of it is effective in the long run. Thumbs down
Name: Jan
St. Pete,FL
Charter ATP Member I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. Hosted a Not-A-Raffle-Raffle Plumerias Dog Lover
Region: Florida Lover of wildlife (Black bear badge) Seed Starter Seller of Garden Stuff Tropicals Hummingbirder
Image
Budgielover
Oct 2, 2012 12:33 PM CST
I try to keep in under control but it comes up even through the mulch if I don't put down a heavy barrier first. I have been trying a grass killer that kills the roots too. I have been told that you can kill certain plants without harming surorunding plants by putting weedkiller in a hypodermic syringe and injecting directed into the plant but I haven't tried it. It may work better this way if you use a more concentrated dose since the runners can be pretty long. I may try it this weekend as I have a small amount of it in my center bed.
Name: Hetty
Sunny Naples, Florida (Zone 10a)
Plumerias Photo Contest Winner: 2015 Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Plant Database Moderator
Forum moderator Region: Florida Cat Lover Garden Sages Cactus and Succulents Tropicals
Image
Dutchlady1
Oct 2, 2012 12:34 PM CST
Better get it while you have a small amount... Whistling
Name: Jan
St. Pete,FL
Charter ATP Member I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database. Hosted a Not-A-Raffle-Raffle Plumerias Dog Lover
Region: Florida Lover of wildlife (Black bear badge) Seed Starter Seller of Garden Stuff Tropicals Hummingbirder
Image
Budgielover
Oct 2, 2012 1:34 PM CST
Yep. I'm constantly after it. It's currently trying to invade my peanut patch. That won't do...
Name: Becky
Sebastian, Florida (Zone 10a)
Celebrating Gardening: 2015 Daylilies Hummingbirder Butterflies Seed Starter Container Gardener
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level Lover of wildlife (Black bear badge) Birds Ponds
Image
beckygardener
Aug 26, 2017 5:15 PM CST
I am bumping this thread up.

I have this noxious weed in so many places in my yard. It takes over like a plague. Any new ideas on how to get rid of it once it has established itself in your yard?
What lies behind us and what lies before us are tiny matters, compared to what lies within us.
Garden Rooms and Becky's Budget Garden
Name: Alice
Saint Helena Island, SC (Zone 9a)
Charter ATP Member Orchids Fruit Growers Tropicals Hummingbirder Garden Photography
Container Gardener Butterflies Bromeliad Birds Ponds Region: South Carolina
Image
ardesia
Aug 27, 2017 12:24 AM CST
Becky, I heard an interesting talk just yesterday and the speaker mentioned that weeds are so prevalent in the nursery trade right now it is always wise to brush as much soil as you can off any potted plant you bring home. She stopped short of saying wash it all off but she did say get as much as possible off and throw it away in the trash, do not compost it because it is full of weed seeds.

Minds are like parachutes; they work better when they are open.

lcj4055
Sep 9, 2017 9:24 AM CST
Be persistent in digging it out and in the worst case, use a herbicide if needed.
I battled torpedo grass since moving to my home in 2004. My neighbor's yard is apparently a nursery for the stuff. I removed a 40-year-old 40 some foot, Viburnum hedge between properties. I dug out the grass and volunteer oak and palm trees growing in there in its midst. The gardening bed was made using landscape fabric, mulch on top with crepe myrtles every 6 feet. Almost immediately, torpedo grass began pushing through the fabric and mulch. This was my first experience with torpedo grass. I cussed, pulled it out and pulled more for months. After 2 years I removed the fabric and once again dug out what seemed like roots the size of a pencil and some up to 8 and 9 feet long from around the crepe myrtles and now a royal palm at the end of the bed. It seemed to use the 'professional landscape border' from the home depot as a root highway to spread even faster. And it still came back and I've pulled it many of my gardening hours but I am winning the battle. It is coming back only in a couple of spots now. And I have only sprayed a herbicide maybe 6 or 7 times over the years. I hope this helps those who have the misfortune of running into this weed.

« Garden.org Homepage
« Back to the top
« Forums List
« Florida Gardening forum
You must first create a username and login before you can reply to this thread.

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by Marilyn and is called "Flowers"