WATERING SPIKE WITH ADJUSTABLE DRIPPER
Ingenious mechanism fits most plastic soda bottles, up to 2 liters. You can adjust the dripper to a slower or faster rate, depending on whether your pot or basket is in sun or shade, indoors or out. Then the dripper automatically runs faster or slower, as the temperature varies. A 2-liter bottle of water can last from one to three weeks. Dripper fits into 6-1/2" spike that delivers water down to the root zone, avoiding surface evaporation. Tough, green plastic spike and clear dripper housing, so you can see to adjust. Dripper mechanism is a precisely sized copper tube. Comes neatly blister-packaged for hanging and includes detailed instructions.