OLLA Watering Pot: Save Water! Conserve your water and keep garden plants growing happily. This ancient irrigation watering system uses an unglazed and lead-free terra cotta pot, buried neck deep and filled with water. As the soil dries out, water is pulled through the wall of the olla at root level. There is virtually no evaporation and no runoff. This saves up to 70% in water use and grows healthier plants. Features: Ideal for small areas like container gardens, flower beds or large planters. Less watering - Fill 1-2 times weekly (see Note below). Wide neck makes refilling easy, especially as your plants grow. Lid virtually prevents evaporation, plus keeps out mosquitoes and critters. Can be used with trees, bushes, herbs, well, anything that needs water to grow. Cold tolerant (see more below). Time-tested! These ollas have been watering gardens for over 10 years. Made in Mexico by fifth generation potters, using native clay from the Baja Peninsula. Note: How often you need to refill depends on the soil type and climate. Drier climates may require more filling, while areas with frequent rainfall will require less. OLLA Pot - The original large OLLA pot. Will water a diameter of 36"-48". Capacity: 2.9 gal. Dimensions: 12"H x 12"W. Weight: 15 lb. Origin: Mexico.