The £10 Ancient Watering Trick That Cuts Garden Water Use by 90% — Your Allotment Neighbour Knows It
Ollas are unglazed terracotta pots buried in soil that deliver water directly to plant roots, reducing water use by up to 90% compared to traditional watering. This 4,000-year-old technique costs under £10 to set up and requires minimal maintenance—just filling every few days. Your allotment neighbour’s simple trick could transform how you garden while saving money and water.