Ollas (pronounced “oy-yahs”) are unglazed clay/terra-cotta pots with a bottle or tapered shape buried in the ground.
If you have limited space in the garden and want to reduce the hassle of powdery mildew, try vertical gardening
I was surprised to discover how easy it is to grow a sweet potato slip. You need an organic sweet potato, water, toothpicks, a jar, and patience.