Make an automatic irrigation system with an empty wine bottle, concrete and some scrap wood. Check out the website for the full instructions and material list! http://www.homemade-modern.com/ep49-self-watering-concrete-planter/
SELF WATERING POTS - Irrigation with ollas (unglazed clay pots) is simple and extremely efficient, but the system gave way to modern watering techniques decades ago. With this type of irrigation, gardeners fill unglazed clay urns with water and bury them near plants. The tops of the ollas (pronounced OH-yas) extend above ground so the urns can be refilled as water is absorbed.The water slowly seeps through the porous clay, directly irrigating roots.