Container gardens are a convenient answer for gardeners who don't have large yards in which to garden, but they tend to need watering every day. If you have a busy schedule, want to take a vacation, or just sometimes forget to water your plants, create a self-watering systems for all of your containers. You'll be able to fill the reservoirs once a week or so and not worry about your garden drying up while you're gone.
Cut your old T-shirts into 1-inch-wide strips. The size doesn't have to be exact, but get them as close as possible.
Group your planters around a bucket. Use multiple buckets if you have a lot of container plants. Each bucket can water four or five planters, depending on the size of the plants.
Bury one end of the shirt strip about 4 inches deep in the soil of a planter. Let the other end of the strip hang over the side of the plant pot and into the bucket.
Place a rock on top of the strip inside the bucket. This will ensure that the T-shirt strip won't blow out of the bucket in a strong wind.
Bury T-shirt strips in each of the planters surrounding the bucket. Hang all the strips into the bucket and place rocks on the ends to keep them in place.
Fill the bucket with water. Moisten the strips to help them begin sucking up the water. The T-shirt material will draw the moisture up into the soil when the soil dries out, keeping a steady supply until the bucket is empty.