Late summer weeds can be tough to remove, but a simple kitchen item—boiling water—offers an effective, chemical-free solution. Sophie Webb, creator of What Sophie Does, recommends pouring boiling water directly onto weeds growing through cracks in patios, driveways, and paths.
Why boiling water works
Weeds break down at temperatures around 100°C, so the heat from a kettle destroys the plant down to its root system. Boiling water cooks the enzymes in the weed, stopping them from functioning. This method avoids harsh chemicals, expensive products, and environmental harm.
Using a kettle takes just 10 minutes of effort and costs nothing, making it easy to try. However, it may take a day or two to completely kill a weed, and deep-rooted weeds may need several treatments with more boiling water.
How to apply boiling water safely
Fill the kettle, boil it, and carefully carry it outside. Clear your route of obstacles and keep children and pets away. Pour the water slowly and directly over the weeds to minimise splashing, and avoid getting it on yourself or nearby plants, as it can harm them.
Within a few minutes, weeds should begin to droop; after several hours, they should appear wilted and brown. Stubborn weeds may take longer. Once dead, sweep away the remnants with a broom and dispose of them.
Boiling water remains one of the most effective ways to kill patio weeds, offering a tidier patio without the need for chemical weed killers.
