For plants, such as dandelions, it may take more water to reach the root and kill off the plant.
Other weeds with a fibrous root system near the top of the soil don’t need as much to be taken out permanently.
For the most effective results, Gardening Know How recommends pruning off most of the foliage at the top of the weed, before applying hot water to tackle the root.
White vinegar is also an effective way to kill weeds, according to the experts at HomeSense.
They said: “Vinegar is a handy home product that also serves as an excellent weed killer.