A succulent nursery may have Crassula seed stock. During winter, mother nature may take care of the plants' watering needs in the form of rain, but you should consider watering your plants thoroughly during the hotter months. It's drought-tolerant once established and requires minimal care. Overwatering doesn't refer to the amount of water you give your succulents. It's more about how often you water them. The key difference between water roots (or soil roots) is that you put the succulents directly into the soil. They need to be watered when necessary, unlike the water roots.