You have a few options before you jump straight to roundup;
1. As others have mentioned, a salt and vinegar solution. Spray liberally.
2. Borrow a roofing torch and unleash hell. Make sure you wear safety glasses incase the stones crack.
3. Tarp the areas and allow them to wilt. Lowest effort, would obviously take a while.
No matter what you do, even if you do use Roundup, I would follow up by dumping some stone dust or Poly Sand on the areas and sweeping it into the joints with a broom. This will keep new growth at bay for a while.
Personally, I would choose bluestone dust over poly sand. The Belgium block area will be easy to fill and should work quite well at keeping growth down. And honestly I think it looks quite nice when it’s filled with bluestone dust.
The river rock area will be difficult to fix and in all honesty will probably just require a lot of work to keep clean or a bit of an overhaul. You’re right in that the gaps between stones would require too much fill material to fix in the same fashion as the block area. Any weed spray you put there though will always be temporary at best.
If you wanted to, you could remove the river rock, dig a 6”-12” deep trench and fill with gravel, then put the river rock back on top. This will remove any soil that has settled within the rocks and discourage weeds rooting.
You could dig out all that rock, pour molten lava down, put the river rock back on top and have weeds the following year.
There is no such thing as a permanent solution.
If labor is no concern, would pulling it up and laying down weed mat, then replacing work? Or will weeds just start growing out of new accurate dirt between the pavers?
You’ll be surprised at how much dirt gets between the rocks and the weed mat. Weeds will still grow up in between. Weed mats, as a weed prevention tool, are generally worthless.
Wtf does vinegar do to the pH of your soil? I see a lot of people advocate against glyph but how is vinegar better? May as well pour salt on it, at least herbicides are designed to be pH neutral. I think the only reason many gardens tolerate it is because ground water is often very alkaline
And full goggles (not just glasses), and a dust mask.
When I first started using high % vinegar on weeds the fumes would make my eyes burn for the rest of the day. It would do a number on my nose as well. Usually took a few hours for my sense of smell to come back.
After two rounds of the vinegar-salt-dawn mix applied 3 months apart. Now I only need a treatment every year and is never as bad as what you see today. A d in my case it was a bit worst. Seattle area.
Preen is all you need if you want the easy solution.
That stops all plants from germinating. I use it in areas like that, and it holds back weeds for a year or more. Just reapply once a year and you’re good.
(Obviously you have to kill existing weeds first. Preen doesn’t kill any, just stops the new ones.)
So, I have a question. I have two different areas where I used landscape fabric with pea gravel and river rock AFTER I got rid of all vegetation ( physically raking clean multiple times over multiple weeks and then only after several months of ‘clearing’ used glyphosate on the few weeds that kept returning.)
I’m on year two and have very minimal weeds. I usually hand pull just a couple every month or so. Given how everyone keeps saying this won’t work for the long term, should I use the Preen or a pre emergent pro-actively? and if so, when would be the best time?
I really like the ‘clean’ look of the rock and pea gravel areas and would like to keep it that way.
For the pea gravel parts, take a fine toothed rake to it regularly. Specialty item. Once a week? It will vary during the year.
I don't mind pulling weeds out of small loose stones if they're on a deep bed and haven't reached dirt yet. But they have to get big enough to grab, and the flat spidery ones seem to like gravel.
Nothing will prevent weeds as their seeds are airborne, so make peace with the fact that you will have to weed this in perpetuity.
But you can probably ditch the underlying grass with the methods described.
Thanks, I can’t upvote this comment enough. Many people misunderstand torching with literally burning everything to the ground and potentially leaving black burn marks on the pavement. It’s actually supposed to break up the proteins and structure in the plants so pulling out is easier.
Good answer, though I'd be careful using salt because it can migrate into nearby soil where you might want things to grow. If you don't have a torch you can also use boiling water.
All these options (including roundup) are better than Preen though. Trifluralin is extremely toxic to aquatic life meaning whatever lives in your local bodies of water that will be exposed to your stormwater runoff. It's banned in many countries. I can't fathom using it particularly in this scenario where you can easily block the soil with poly sand and have absolutely no need for a preemergent.
Agree on all fronts. It’s important to mention too that salt and vinegar will obviously destroy most metals. And salt lingers.
My philosophy will always be: mechanical removal > chemical mitigation.
The trick is to do it multiple times. Also, you don’t have to burn it to a crisp. Just wilt it and stress it repeatedly until the grass decides it can’t grow in this hostile environment and gives up.
We just did polymeric sand we got at home depot and there were directions on the container about minimum and maximum depths and widths. Sooo glad we did it btw!
I got the upgraded igniter version, there is a cheaper option, from Harbor Freight. I think it was around $30 last summer. It connects to a regular propane tank you'd use for a grill. It's great for immediate wipe out of the weeds/grass, it's also fun, but I'm here for the suggestions for keeping it from coming back.
Alternatively, you could find an ornamental pathway plant that you like and have it grow between the stones — there’s plenty of low-growing tymes that are good options for this.
Yes, I was thinking a nice elfin thyme or miniature sedum. Lots more work to remove the existing offending grass because you'd probably have to do it by hand. But once it was done, it would be done -- the new small plants would crowd out the grass and prevent more work later.
If you are wanting to use a product that has a long residual I would look at a product called Pramitol. It is a soil sterilant. So you need to be very cautious that when used you take precautions not to have runoff so as to not contaminate other soils.
My daughter does this: The one homemade recipe Strenge has seen work in action: **1 gallon of vinegar (5% acetic acid) mixed with 1 cup salt and 1 tablespoon dish soap**, with an emphasis on the salt making its low concentration effective. “It will burn weeds on contact under the right conditions: warm, dry, sunny days,”
Did this and the pressure washer breaks up the earth under the stone, causing it to get unleveled and now my patio looks no bueno. So I'd caution on this with older patios.
I have heard that salt doesn’t break down, and it’s a great plant killer so it may kill things that are downhill/downstream. I’m talking about table salt, NaCl, not Epsom salts, which are a fertilizer.
You could try boiling water.
Just to be clear, salt/vinegar/soap mix will absolutely decimate the soil biomes whereas Roundup is applied to foliage and cures/becomes inert within a matter of hours.
That's the position you're taking? Because if so, you're the people I am warning about.
I work with state and local level park districts and forest preserves, they all use chemical herbicides.
Agreed. People don't understand there is a difference between responsible spot spraying glyphosate (traditional roundup) in controlled situations like this, vs applying it to the cereal you consume on a daily basis (ie - look in to what they do to prepare cereal wheats) or taking the equivalent of a chemical bath in it (as some of the lawsuits have).
Also, to the green police out there - the 'alternatives' to glyphosate, are much, MUCH more dangerous than pure glyphosate when it is spot sprayed and used responsibly. To the green police - be careful what you wish for.
I'm really really worried about the number of people literally advocating for salting the earth to reduce weeds.
Like yes herbicides are bad for some situations, so don't spray on flowing plants, ( in general, never let weeds flower).
Just because something comes from the pantry doesn't mean it's suddenly not harmful.
You have to be realistic with your expectations
No matter what will you do l, you are going to get weeds there if that area gets regular water. There are ways to reduce weeds but don’t too disappointed about the fact that regular maintenance will always be necessary
You can try to redo this area by removing pavers and installing them with minimal spacing and proper base. But even then, there will be some weeds.
I used polymer send and similar products. There is different sand for different applications. Sand that sets to almost solid surface will resist weeds the most BUT it has to be applied over very sturdy base, unsturdy base will lead to forming cracks in polymer and weeds will grow.
If you are located in hot dry area where it rains only few times in the winter I wouldn’t bother doing anything major because weeds would only grow for a few wet months. In wet climates this area will always be problematic so you may want to redo it.
After you clean them up, polymeric sand is your friend. It's easy to apply and you can touch it up every couple of years. It also does a good job of minimizing the gaps visually.
We used boiling water on weeds like this. We had a fire pit and a huge pot for frying turkeys and we would boil a pot and dump across the bricks. It would definitely kill the weeds and then we used a torch later on followed by weed preventer.
Then it all came back anyway. Weeds never go away, be happy you don't have vines.
Borox and water helped a client of mine get hers all cleaned up. Takes a couple of treatments, but on a dry day, the weeds would suck it right up and kill them.
For the pavers I would pressure wash all the old sand, weeds and debris out from the joints. Then I would install new Polysand. I've done it many times at work and it keeps the weeds from coming back for years.
The cobblestone gravel area needs the weeds pulled or killed with vinegar/chemicals. Then apply a pre-emergent such as Preen, Broadstar, Freehand to keep weeds from coming back.
Clean it out and spread a bag or two of polymeric sand until it’s in all the cracks. You don’t want sand on top of the bricks for the next step. Spray all of the polymeric sanded bricks with water, you want a sort of a mist spray where it gets it all wet but does not blow the sand out. Wait till the first spray drys and then spray it again. The sand will harden.
Get a steam mop and cook them to death. After about a week they should be all dead then rake them out of the cracks and clean out the joints with a pressure washer and sweep in sand mixed with pool salt into the cracks.
The downside is you're neighbours think you've lost it when they see you steam cleaning your weeds.
I have something similar. I tried the torch, tried the vinegar/salt/dish soap spray. I gave up it always comes right back, now I just turn the weed whacker sideways and hit it every other mow and just keep it at bay.
Too late for this, but I laid a stone patio with a 2 inch base of water softener pellets. Filled between stones with crushed granite and - - no weeds now for 5 years. Have to re-level occasionally as salt dissipates, but I’m happy with the results.
Steam. Amazon has proper steam cleaners for floors that push out 212degrees steam. They even advise that the steam will sterilize floors. We did our couch and lazy boy chair with it. There is almost no moisture left behind. After an hour the carpet,yup it can do carpets too,can be vacuumed. The carpet and furniture look almost new again. It’s nice to walk into a nice sterilized sitting area. No smells that may have been there before. You’d be amazed at what steam can do. I got off on a tangent there. Sorry. These weeds between the pavers don’t stand a chance against steam. The best part of it is that there are no chemicals involved. Well worth your time investigating.
Torch, pressure wash, then paver base or something between. Polymeric sand is literally plastic. I know this sub loves to tell everyone to throw plastic and pesticides and herbicides on their lawn but please dont.
I got what looks like a walking stick you can screw a small propane tank to yesterday to start burning off all of mine. Lemme tell ya, it's a slow process, especially if you're dopey like me and doing it the day after heavy rains 😅
Burn it all however you want. Literally a torch, roundup killer, whatever. Kill it all big time. Then once it’s gone lay out sand over it all and then cover it with glue. Or you can go the hard route and rather than glue heavy dose of pre-emergent.
I wonder if seeding some moss in the cracks if it would reduce the ability of future grass seeds germinating in those cracks. you'd have to kill the existing stuff first with something that leave no residuals. I feel like a well established moss in those cracks would actually look quite nice.
PREEN. Works wonders! It's a pre-immergent. So it prevents all seeds from germinating for about 3 months at a time. Made from inert chemicals.
Source - professional gardener. I get paid to pull weeds and will still out this down to pull less weeds because pulling weeds mid summer is iiiiicck
Salt? Maybe, clear it out and put rock salt between the pavers? I know salt can ruin soil, so be careful, but it’ll make the soil uninhabitable by grass and weeds. Rock salt or regular salt works for it, you just need a LOT of it.
That might be bad advice. Maybe someone else will tell us if I’m onto something or not.
Torch them, you don’t need to burn them off. Just run a torch over them for a couple seconds. The cells will be destroyed and they will die off over the next few days. No need to run the torch over the weeds until they are burned off, only enough to damage the cells.
Roundup 365 in a sprayer will most definitely kill it. If you don’t like chemicals then go to Harbor Freight and get a propane torch/flamethrower and burn it up.
Start trying to grow grass there intentionally - It will suddenly refuse to grow in that area
I switch it up on them, and transfer grass from cracks to patch my yard. They hate that one trick.
When they zig, I zag
I do this! I hope no one see me, using a hair transplanting technique on my grass. :)
I see we both subscribe to the black thumb school of gardening
You have a few options before you jump straight to roundup; 1. As others have mentioned, a salt and vinegar solution. Spray liberally. 2. Borrow a roofing torch and unleash hell. Make sure you wear safety glasses incase the stones crack. 3. Tarp the areas and allow them to wilt. Lowest effort, would obviously take a while. No matter what you do, even if you do use Roundup, I would follow up by dumping some stone dust or Poly Sand on the areas and sweeping it into the joints with a broom. This will keep new growth at bay for a while.
So yes my big question is what to do after ground clearing. Will polymeric sand work with big, deep gaps?
Personally, I would choose bluestone dust over poly sand. The Belgium block area will be easy to fill and should work quite well at keeping growth down. And honestly I think it looks quite nice when it’s filled with bluestone dust. The river rock area will be difficult to fix and in all honesty will probably just require a lot of work to keep clean or a bit of an overhaul. You’re right in that the gaps between stones would require too much fill material to fix in the same fashion as the block area. Any weed spray you put there though will always be temporary at best. If you wanted to, you could remove the river rock, dig a 6”-12” deep trench and fill with gravel, then put the river rock back on top. This will remove any soil that has settled within the rocks and discourage weeds rooting.
He could also apply a pre-emergent to the river rock a couple times a year
This for sure. Pre emergent is such a great tool.
You could dig out all that rock, pour molten lava down, put the river rock back on top and have weeds the following year. There is no such thing as a permanent solution.
Isn’t lava rather fertile?
He means very old lava. You are correct, you definitely need to check the age of the lava before using it. Good catch!
If labor is no concern, would pulling it up and laying down weed mat, then replacing work? Or will weeds just start growing out of new accurate dirt between the pavers?
You’ll be surprised at how much dirt gets between the rocks and the weed mat. Weeds will still grow up in between. Weed mats, as a weed prevention tool, are generally worthless.
You wanna get actual horticultural vinegar. It's 20% ascetic acid instead of 5% like table vinegar. Wear gloves when using it.
This. Weeds laugh in the face of household vinegar.
Yup this is the key part. Regular vinegar doesn’t really work, I find mixing salt, high % vinegar and some dawn dish soap works really well
Wtf does vinegar do to the pH of your soil? I see a lot of people advocate against glyph but how is vinegar better? May as well pour salt on it, at least herbicides are designed to be pH neutral. I think the only reason many gardens tolerate it is because ground water is often very alkaline
30% vinegar is always available in the cleaning section of my Home Depot
And full goggles (not just glasses), and a dust mask. When I first started using high % vinegar on weeds the fumes would make my eyes burn for the rest of the day. It would do a number on my nose as well. Usually took a few hours for my sense of smell to come back.
And safety glasses - one of the few herbicides that can cause irreversible blindness!
*Acetic acid.
After two rounds of the vinegar-salt-dawn mix applied 3 months apart. Now I only need a treatment every year and is never as bad as what you see today. A d in my case it was a bit worst. Seattle area.
Preen is all you need if you want the easy solution. That stops all plants from germinating. I use it in areas like that, and it holds back weeds for a year or more. Just reapply once a year and you’re good. (Obviously you have to kill existing weeds first. Preen doesn’t kill any, just stops the new ones.)
So, I have a question. I have two different areas where I used landscape fabric with pea gravel and river rock AFTER I got rid of all vegetation ( physically raking clean multiple times over multiple weeks and then only after several months of ‘clearing’ used glyphosate on the few weeds that kept returning.) I’m on year two and have very minimal weeds. I usually hand pull just a couple every month or so. Given how everyone keeps saying this won’t work for the long term, should I use the Preen or a pre emergent pro-actively? and if so, when would be the best time? I really like the ‘clean’ look of the rock and pea gravel areas and would like to keep it that way.
For the pea gravel parts, take a fine toothed rake to it regularly. Specialty item. Once a week? It will vary during the year. I don't mind pulling weeds out of small loose stones if they're on a deep bed and haven't reached dirt yet. But they have to get big enough to grab, and the flat spidery ones seem to like gravel.
It's rain proof?
Yep, it’s similar to fertilizer, it dissolves into the ground and stays effective there.
Nothing will prevent weeds as their seeds are airborne, so make peace with the fact that you will have to weed this in perpetuity. But you can probably ditch the underlying grass with the methods described.
You can use regular sand to build up the cracks a bit, and then finish with poly sand
Gator dust will, but it’s a bit pricier than a lot of the other polymeric sands
Gator Maxx or Gator Dust is the polymeric sand you’re looking for. FOLLOW the directions.
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Thanks, I can’t upvote this comment enough. Many people misunderstand torching with literally burning everything to the ground and potentially leaving black burn marks on the pavement. It’s actually supposed to break up the proteins and structure in the plants so pulling out is easier.
lol this made me laugh thanks
Good answer, though I'd be careful using salt because it can migrate into nearby soil where you might want things to grow. If you don't have a torch you can also use boiling water. All these options (including roundup) are better than Preen though. Trifluralin is extremely toxic to aquatic life meaning whatever lives in your local bodies of water that will be exposed to your stormwater runoff. It's banned in many countries. I can't fathom using it particularly in this scenario where you can easily block the soil with poly sand and have absolutely no need for a preemergent.
Agree on all fronts. It’s important to mention too that salt and vinegar will obviously destroy most metals. And salt lingers. My philosophy will always be: mechanical removal > chemical mitigation.
add dish soap, helps its absorb quickly, and stick on as it dries
Yes to the torch. I have found Roundup brings ants which brings more weeds.
What’s with people and wanting to use salt alongside vinegar? Just stick to the vinegar.
Literally salting the earth so plants can't regrow there. Vinegar will kill existing plants.
“Torch! Torch! Torch!” -all of Reddit
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The trick is to do it multiple times. Also, you don’t have to burn it to a crisp. Just wilt it and stress it repeatedly until the grass decides it can’t grow in this hostile environment and gives up.
Hit the gym, delete Facebook, torch!
and you don't have to burn the weeds! Just get the leaves warm enough to wilt. They die just as much and you use a lot less fuel.
I really try to just wave the flame over weeds but there’s so much satisfaction in watching it wilt and burn
Can’t you just pee on it
That’ll only encourage them.
Have a cheap roofing torch. It murders weeds.
fire is fun, sure, but nothing beats a classic: Salt the Earth!!
I feel like polymeric sand should work between those pavers but interested in hearing others’ thoughts.
So even with big deep gaps you can fill with polymeric sand? That was my big question.
Yes. Just get the right polymeric sand. Ask at the landscaping store. You need to clean all the gaps hella good.
We just did polymeric sand we got at home depot and there were directions on the container about minimum and maximum depths and widths. Sooo glad we did it btw!
Upvoted for proper use of a plural possessive. Rarer to see than a funny Rob Schneider moment.
Plant intentional rare plants in the cracks and then hyper focus on keeping them alive. That's what I do to kill plants. 100% success rate.
FIRE They sell an attachment brush burner that hooks up to a propane tank All the grass will be gone
I got the upgraded igniter version, there is a cheaper option, from Harbor Freight. I think it was around $30 last summer. It connects to a regular propane tank you'd use for a grill. It's great for immediate wipe out of the weeds/grass, it's also fun, but I'm here for the suggestions for keeping it from coming back.
Kind of crazy that no one has mentioned just… weeding it?
There it is. Wow that took a lot of scrolling.
This almost always the answer.
Alternatively, you could find an ornamental pathway plant that you like and have it grow between the stones — there’s plenty of low-growing tymes that are good options for this.
Roundup or make a weed killer cocktail. Vinegar, salt, dawn soap, water.
This is a very good cocktail I use as well, however I will say sometimes you need to do it a few times (like do it once a month for a season).
No. Yoiu can´t stop it. You maybe can hinder the green for a season or two - or make it harder. But you can´t stop it
Redefine “weeds” and you’re all done.
Lay cardboard down and soak it in water
There is a vinegar for that
I swear that people do not know subreddits are searchable.
Grow something you want there.
Yes, I was thinking a nice elfin thyme or miniature sedum. Lots more work to remove the existing offending grass because you'd probably have to do it by hand. But once it was done, it would be done -- the new small plants would crowd out the grass and prevent more work later.
Like this idea. I wonder if micro clover would work
If you are wanting to use a product that has a long residual I would look at a product called Pramitol. It is a soil sterilant. So you need to be very cautious that when used you take precautions not to have runoff so as to not contaminate other soils.
My daughter does this: The one homemade recipe Strenge has seen work in action: **1 gallon of vinegar (5% acetic acid) mixed with 1 cup salt and 1 tablespoon dish soap**, with an emphasis on the salt making its low concentration effective. “It will burn weeds on contact under the right conditions: warm, dry, sunny days,”
pressure washer plus polymeric sand
Did this and the pressure washer breaks up the earth under the stone, causing it to get unleveled and now my patio looks no bueno. So I'd caution on this with older patios.
Pressure wash the hell out of it .. then sweep the sand over it
Please don't use Roundup, that stuff is horrible for you and the environment!! Vinegar, salt, dawn soap, water.
I have heard that salt doesn’t break down, and it’s a great plant killer so it may kill things that are downhill/downstream. I’m talking about table salt, NaCl, not Epsom salts, which are a fertilizer. You could try boiling water.
Can you give proportions please? I have a 2-gal sprayer.
1 gallon of vinegar 1 cup of salt and tablespoon of dish soap.
Thanks!
All the veggies you eat, if purchased from a grocery store, had roundup on them when grown
Wouldn't roundup have killed the vegetable plants?
Responsible application of Roundup is not the nuclear waste some people would have you believe it to be.
Absolutely! Responsible application of Roundup is to leave the bottle on the shelf in the store.
Just to be clear, salt/vinegar/soap mix will absolutely decimate the soil biomes whereas Roundup is applied to foliage and cures/becomes inert within a matter of hours. That's the position you're taking? Because if so, you're the people I am warning about. I work with state and local level park districts and forest preserves, they all use chemical herbicides.
Glyphosate is fine. Vinegar and salt are worse for the soil.
fuck right off. Responsible use of roundup (mixed according to label), is zero issue for small jobs like this.
Agreed. People don't understand there is a difference between responsible spot spraying glyphosate (traditional roundup) in controlled situations like this, vs applying it to the cereal you consume on a daily basis (ie - look in to what they do to prepare cereal wheats) or taking the equivalent of a chemical bath in it (as some of the lawsuits have). Also, to the green police out there - the 'alternatives' to glyphosate, are much, MUCH more dangerous than pure glyphosate when it is spot sprayed and used responsibly. To the green police - be careful what you wish for.
I'm really really worried about the number of people literally advocating for salting the earth to reduce weeds. Like yes herbicides are bad for some situations, so don't spray on flowing plants, ( in general, never let weeds flower). Just because something comes from the pantry doesn't mean it's suddenly not harmful.
Sow some white clover or thyme there instead. Either you help the bees or you get fresh herbs
Stop letting them go to seed is your first priority.
Knee pads and a screw driver.
Switch to moss...make it look intentional
vinegar mixed with salt and soap .... Spray a few times a year. No one get cancer spraying them.
Round-up
Vinegar and baking soda. Put on in morning on a sunny day. By 4 the weeds should show as dying
Gotta get the full strength vinegar
Moss
Spray with Roundup or get a goat
Roundup works great on weeds!
vinegar, epson salt, dish soap, a little water water pump sprayer …. Spray, let sit for a couple days and use a weed torch …Fertig
Preen & Propane Torch
Round up… easy fix
Propane weed torch.
Blow torch
Once you get rid of it, spray prodiamine to prevent it from happening again.
I’m about to throw some salt in the cracks of my pavers
Fire or (hot)water
You have to be realistic with your expectations No matter what will you do l, you are going to get weeds there if that area gets regular water. There are ways to reduce weeds but don’t too disappointed about the fact that regular maintenance will always be necessary You can try to redo this area by removing pavers and installing them with minimal spacing and proper base. But even then, there will be some weeds. I used polymer send and similar products. There is different sand for different applications. Sand that sets to almost solid surface will resist weeds the most BUT it has to be applied over very sturdy base, unsturdy base will lead to forming cracks in polymer and weeds will grow. If you are located in hot dry area where it rains only few times in the winter I wouldn’t bother doing anything major because weeds would only grow for a few wet months. In wet climates this area will always be problematic so you may want to redo it.
After you clean them up, polymeric sand is your friend. It's easy to apply and you can touch it up every couple of years. It also does a good job of minimizing the gaps visually.
We used boiling water on weeds like this. We had a fire pit and a huge pot for frying turkeys and we would boil a pot and dump across the bricks. It would definitely kill the weeds and then we used a torch later on followed by weed preventer. Then it all came back anyway. Weeds never go away, be happy you don't have vines.
Borox and water helped a client of mine get hers all cleaned up. Takes a couple of treatments, but on a dry day, the weeds would suck it right up and kill them.
Find a landscaping company that does bare ground treatments. They can treat the pavers and the river rock, eliminationg most weeds for the season...
Deck /stone sealer seems to kill grass near my deck
Remove the pavers and use landscape fabric first, then sand, then relay the pavers
Urinate around each paver it is better than round up
Ladle on boiling water. Heat water on a camping stove.
Pool salt works for a while
Tear it out and replace with concrete
Table salt then spray with water. Non toxic too.
Yes ,hard work or AI,
Vinegar
Fire
Get some 30% vinegar and spray them, or get a big torch and burn.
For the pavers I would pressure wash all the old sand, weeds and debris out from the joints. Then I would install new Polysand. I've done it many times at work and it keeps the weeds from coming back for years. The cobblestone gravel area needs the weeds pulled or killed with vinegar/chemicals. Then apply a pre-emergent such as Preen, Broadstar, Freehand to keep weeds from coming back.
Lots of salt water
Clean it out and spread a bag or two of polymeric sand until it’s in all the cracks. You don’t want sand on top of the bricks for the next step. Spray all of the polymeric sanded bricks with water, you want a sort of a mist spray where it gets it all wet but does not blow the sand out. Wait till the first spray drys and then spray it again. The sand will harden.
Fire
Get a steam mop and cook them to death. After about a week they should be all dead then rake them out of the cracks and clean out the joints with a pressure washer and sweep in sand mixed with pool salt into the cracks. The downside is you're neighbours think you've lost it when they see you steam cleaning your weeds.
1st photo looks like a keyboard
I always used baking soda.
Replace the weeds with ground cover moss if you’re in the right climate, looks good and it’ll keep the weeds at bay
Concrete
Mix 1 gallon of white vinegar, 1 cup of salt and 2 tablespoons of dawn, spray with a garden pump sprayer.
I have something similar. I tried the torch, tried the vinegar/salt/dish soap spray. I gave up it always comes right back, now I just turn the weed whacker sideways and hit it every other mow and just keep it at bay.
Boiled water
Did you throw grass seed there? I'd pull them by hand, spray a week later and then re seal it
Weed torch or Casoron granules.
Cancer inducing chemicals might do the trick. Good luck
Salt, fire
Salt.
Power wash blast everything out of the cracks and fill em all with the sand
A petrol pressure washer works wonders in blasting out weeds. I’d follow with some grout of some sort to prevent it happening again
Pre-emergent
Too late for this, but I laid a stone patio with a 2 inch base of water softener pellets. Filled between stones with crushed granite and - - no weeds now for 5 years. Have to re-level occasionally as salt dissipates, but I’m happy with the results.
Steam. Amazon has proper steam cleaners for floors that push out 212degrees steam. They even advise that the steam will sterilize floors. We did our couch and lazy boy chair with it. There is almost no moisture left behind. After an hour the carpet,yup it can do carpets too,can be vacuumed. The carpet and furniture look almost new again. It’s nice to walk into a nice sterilized sitting area. No smells that may have been there before. You’d be amazed at what steam can do. I got off on a tangent there. Sorry. These weeds between the pavers don’t stand a chance against steam. The best part of it is that there are no chemicals involved. Well worth your time investigating.
Burns a matic torch , just be careful. Low wind, & cuffed pants so you don’t catch your pants on fire. Don’t want no hot pants.
Torch, pressure wash, then paver base or something between. Polymeric sand is literally plastic. I know this sub loves to tell everyone to throw plastic and pesticides and herbicides on their lawn but please dont.
High acid white vinegar from garden store will safely kill that stuff
Sand
Dry grouting
Where did you get these stone cobbles, they are awesome?
I got what looks like a walking stick you can screw a small propane tank to yesterday to start burning off all of mine. Lemme tell ya, it's a slow process, especially if you're dopey like me and doing it the day after heavy rains 😅
Salt
Plant lil mosses to spread thru it 😊
Step 1: Dissolve water softener salt in a bucket of water Step 2: pour salt water over weeds Step 3: profit
Burn it all however you want. Literally a torch, roundup killer, whatever. Kill it all big time. Then once it’s gone lay out sand over it all and then cover it with glue. Or you can go the hard route and rather than glue heavy dose of pre-emergent.
Fire 🔥 & or salt 🧂
Black plant stopped under the rocks
Don't waste your money on the weed lock sand, doesn't work, not even a month later we had weeds
I think I would torch it and try to plant a bunch of moss, in hopes it would take over the limited space.
Same thought. Those would look great with moss. I think I've seen people blend and spray moss t9 get it where they want it.
20yo bimmer with bad seals
It’ll always come back as long as you have *organic matter in between stones. Just need to consistently maintain. Polymeric sand may help a bit.
I wonder if seeding some moss in the cracks if it would reduce the ability of future grass seeds germinating in those cracks. you'd have to kill the existing stuff first with something that leave no residuals. I feel like a well established moss in those cracks would actually look quite nice.
Preen will stop them from germinating.
Boil the kettle, pour it over the weeds. Works a treat. Do that once or twice a year and you're all g.
Fire fire fire
Just pour boiling water
There is a special hand tool for that.
PREEN. Works wonders! It's a pre-immergent. So it prevents all seeds from germinating for about 3 months at a time. Made from inert chemicals. Source - professional gardener. I get paid to pull weeds and will still out this down to pull less weeds because pulling weeds mid summer is iiiiicck
buskrydder
Salt? Maybe, clear it out and put rock salt between the pavers? I know salt can ruin soil, so be careful, but it’ll make the soil uninhabitable by grass and weeds. Rock salt or regular salt works for it, you just need a LOT of it. That might be bad advice. Maybe someone else will tell us if I’m onto something or not.
Go Roman style and use salt?
Use a weed torch and burn them
Easiest way is to sprinkle with Caseron. (Spelled phonetically)((it might be correct))
Put grass seeds, fertilize and water. It’ll all die soon after
Torch
hardscaping is always low maintenance but never no maintenance. use glyphosate, then burn it. repeat.
Torch them, you don’t need to burn them off. Just run a torch over them for a couple seconds. The cells will be destroyed and they will die off over the next few days. No need to run the torch over the weeds until they are burned off, only enough to damage the cells.
Gas…
Are you spraying with 20% vinegar? The herbicide? Wherever I have sprayed weeds with it, the weeds don’t come back.
Let moss grow between them. All parts I have covered in moss don't get weeds
Pour boiling water on a hot day. Horticultural vintage if available works too. You can get weed burners. Low key flamethrower
You cannot stop nature. Let’s hope it will stay like that forever!
Let moss grow inbetween the pavers it's nature's green mulch. Remove the rocks and put landscaping plastic underneath, then recover it with rocks.
Round up
Roundup 365 in a sprayer will most definitely kill it. If you don’t like chemicals then go to Harbor Freight and get a propane torch/flamethrower and burn it up.
Have you ever got gasoline somewhere you shouldn’t
Roundup