Ollas (pronounced “oy-yahs”) are unglazed clay/terra-cotta pots with a bottle or pumpkin shape that can be are buried in your garden pottery and containers, with the top/neck exposed above the soil surface and filled with water for sub-surface irrigation of plants.  The water leaches out of the clay into the soil keeping your plant materials root system moist and healthy.  Perfect for watering your potted plants when away from home on vacation or for extended periods of time. 
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