Garreth Harris said: “Don’t use weed killer, salt and boiling water will do. Sprinkle on the salt and pour on the water. Best if done on a sunny day. This works better than Roundup, is safe for use in yards and children and pets, and also works with the first application.”
Ann Davis advised: “Pull the tops off, then pour boiling water with salt. Don’t use salt anywhere you want plants to grow, and use enough hot water to get down to the root properly.”
Pat Walker commented: “Salt mixed with boiling water will make the weeds stay away for years.”
Amanda Black wrote: “Boiling water and salt works a treat. I did it last year on my crazy paving weeds. It killed them in 24 hours, and they haven’t come back since.”
Karen Outen urged, “Never use weed killer. It kills bees. Just use salt and boiling water. It’s a game-changer.”
Sue Blades instructed: “Wet the area with boiling water and sprinkle with table salt. Leave 24 hours and it will have worked, great for moss too.”
So, how does salt work to kill weeds? Well, as it is applied to soil, salt pulls moisture out of plant cells, causing dehydration and eventually plant death.
The salt method also prevents further growth of weeds. Harry Bodell, garden expert at Price Your Job, explained: “There are certain ions present in salt which can be toxic to plants when accumulated in high concentrations, interfering with natural processes such as photosynthesis, leading to cell damage and dehydration of the plant.”
