Calibrachoa is a type of flower that does well in places with high humidity. If they don't get enough water, their leaves quickly get moldy, so it's important to follow these watering rules carefully. Calibrachoa likes to soak up water and then let it dry out. They need a lot of water; then they need to dry out before watering again. This ensures their roots get the water they need without getting root rot. They get a lot of water once a week, which keeps the roots from always sitting in damp dirt.