Slow release watering around growing plants Using an Olla is a great way to keep plants watered, especially in dry regions and in the height of summer. The way they work is by slowly releasing water directly into the soil. This saves a lot of water since very little of it is lost to evaporation on the soil’s surface. Being slow-release it also means that you need to water your plants less. Although you can purchase purpose-built Ollas, making your own using terracotta pots is both easy and inexpensive. In
