Aarde. offers a range of unique handmade objects for garden or greenhouse usage. During the production, these jugs are deliberately kept porous so they support natural and autonomous watering of plants. The process is simple: a jug is buried into the soil up to the neck next to one or a range of plants and filled with (preferably rain) water. It will release water into the soil according to what the plant requires. Jugs need to be refilled depending on the size, the type of soil and climate.
Be careful to remove the jug before wintertime as it doesn't withstand frost. A range of sizes is available.