Ollas: Unglazed Clay Pots for Garden Irrigation - The Permaculture Research Institute
How to Make an Olla for Effortless Garden Irrigation
Olla Watering System: everything you need to know to get started
Irrigation pots — The California Pot Company
Olla Garden Irrigation Pot - Large - 1.25 Gallon with Olive, Purple and Blue Lid : Handmade Products
In the Studio: Garden Ollas
How to make DIY Ollas: Low Tech Self-Watering Systems for Plants
THE OLLA COMPANY, Olla Classic Small – Olla Watering Pot with lid, Olla Watering System with Terra Cotta Clay Irrigation Pots
Ollas: Irrigate Your Garden With Ancient Tech - Epic Gardening
Irrigation pots — The California Pot Company
CLAY POT IRRIGATION – Permaculture Food Forest
How to use Ollas (sub-irrigating clay pots) to save water (greening the desert forum at permies)
