author says: punch two holes in the bottom and two holes in the side and plant the bottles in the soil next to your plants. Fill the bottles with water and the plants in that area should get a slow steady watering for up to a week as water leaches into the soil.
Amazing Organic Weed Killer Spray. 1/2 gallon of Apple Cider Vinegar 1/4 c table salt 1/2 tsp Dawn liquid dish soap Mix and pour into a spray bottle Spray weeds thoroughly. It makes 1/2 gallon for around $6.40 It worked better than Round Up killed the weeds on first application. The Dawn dish soap strips the weed of its protective oils so the vinegar can work with deadly force. Safe to use a yard used by pets