Whenever you decide to go out-of-town on holiday or vacation, you are naturally concerned about the care of your houseplants; i.e., they will need to be watered. If you are only going to be away for a day or two, giving them a good watering before you leave is usually sufficient. However, if you are going to be gone for an extended period of time, your houseplants could languish or even die without being watered. There are several methods by which your plants can receive water automatically, with the wick method being the method most commonly used and the most efficient.
Use the pencil to poke a hole in the soil of your houseplant. Try to make the hole as deep as possible, preferably all the way to the bottom of the pot.
Stick the wick all the way to the bottom of the hole. The wick can be one like those used for oil lamps or a quarter-inch piece of polyester rope. You can even use old cotton shoelaces or tights that have been wound up into the shape of a wick. Do make sure that the wick is at least twice as long as your pot is deep.
Fill the container with water, position it next to your houseplant, and place the other end of the wick into the container. Your wick should be long enough to reach almost to the bottom of the container. The capillary action of the plant will gradually draw the water into the soil.