Water and Drainage: Planting in Dry and Wet Soil – Drainage is always a critical element that affects how a plant adjusts to the place it is grown. The definition of drainage is the movement of water through the soil. Water moving quickly through the soil means that drainage is good or fast. This type of soil is referred to as well-drained. When water move very slowly, drainage is poor.
This doesn’t mean you can’t have a garden in a poorly drained area. But your choices of plants will have to be limited to species that grow well in wet soil conditions. There are ways to improve drainage some of which are mentioned below.