Kill Weeds with Hot Water

A safe way to kill weeds is to pour boiling water on them. It will literally burn them, but will not harm the plants around the weeds if the water goes that far. Obviously, there will be no toxins left behind. If there might be plants close by, you could cut the top and bottom out of a tin can or plastic bottle, place that collar around the weed, and then pour. This should keep the water from running to nearby plants. Be careful if using a collar - I would recommend gloves or a hot pot holder in case it needs to be supported. A teapot or watering can works well. This works especially well along borders and in sidewalk cracks.