Landscape fabric? How old? If years old the dust has collected into nice layer of dirt above fabric which allows weeds thrive in. Key to stopping weeds get them while they’re young before the produce seedings.

To really stop weeds you have to eliminate the dirt above fabric that required removing rock/mulch pulling up old mat treating and leveling the ground. Lay down new mat (landscape fabric the thicker the better) sifting all dirt out of rocks, lay down clean layer over the mat. Good to go for few years till dust puts down another layer of dirt.

How do I know this I’ve pulled up about 1/3 of my rock landscape due to 30 plus Holly bushes removed, cleaned leveled dirt, sniffed rocks removing dirt and layer down clean rocks. I have no weeds in those areas. Where the other 2/3s fighting weeds every month. I either pull or roundup them while they are young/just popped up.

Another thing if you house resale and previously owners planted shrubs and the died you have holes in fabric where weeds really thrive.

Preen pre-emergent doesn't work. Use Prodiamine or Barricade pre-emergent.

Tried that. Didn't work on mine.

No to herbicides. I’m raising a Monarch caterpillar in my lanai right now and if all goes well it will emerge to become a beautiful butterfly. To suppress weeds in a rock bed, I added pine straw( Ace)and a peat moss blend.(Lowe’s) Planted some lantana to spread over rocks also to block weed formation. I’m experimenting with coffee grounds on my rock beds that have no added mulch to see what happens. I don’t mind hand pulling weeds sometimes because it calms me down!

Like several other things I can think of, pulling by hand is still the best method.:shrug:

:22yikes:Best weed killer I've used is agricultural vinegar minimum 45% acetic acid - organic and harmless to the environment
Amazon.com

Household vinegar is not strong enough (5% - 7% acetic acid). Needless to say, follow the mixing directions. The stronger you mix the solution, the more effective it will be. The mixture in post #7 uses dawn detergent as a surfactant which allows the liquid to adhere to the plant - works well!

I also use the weed torch in post #5, which works well for me. Be cautious with the ag vinegar - it will burn mucous membrane :eek: (wear gloves and eyewear). The "cocktail" that I mix is about identical to the one posted in #7. I spray when it's dry and hot outside; you'll see results within hours! The torch I use periodically, as needed, between the vinegar dousings

:wave:
FredF

Pets shouldn’t be IN the flower beds and if roundup is used properly it won’t affect people.

Weeding is an exercise for me. I've heard from a yoga instructor that we should put our head below the heart for 10 minutes a day for brain health. Consider bending over to get those weeds your brain health regimen!

napalm

Pull the big ones, spray weed killer on all and throw down a good dose of PREEN. I do it every month. Works

Get rid of the weeds
 

my daughter bought us a miniature flamethrower that uses a small container of propane. This worked wonderfully well for us.. I think ours came from Amazon. Good luck with your problems.

Funny. On a serious note, I pull the weeds as much as I can but another said once they bear seeds pulling them shakes loose the seeds which then take root. Unfortunately those damn things are too fragile any earlier and simply break off at the surface and leave the root intact. Tis a conundrum.

Ditto!

Roundup is absorbed through the leaves of what you spray it on. It dries quickly and will not hurt anything else even if absorbed into the ground.

One exception. There is a type of roundup that in addition to killing the weed will prevent more weeds from sprouting for a year. This type can damage root systems if used a lot in one area.

I like you have tried all types of weed killers, including regular vinegar. I finally found something that works on YouTube. It is vinegar but you need to make sure it’s at least 30% and not regular vinegar. It works wonders weed is usually dead the next day once a week, you go through your flowerbeds with a spray bottle of the peer 30% vinegar and spray weeds that may be coming up. I did this for about a month and definitely have less weeds. Just remember the vinegar has to be 30%.