THE TEXTURE OF SOIL INDICATES HOW OFTEN TO WATER
MYTH: LAWNS AND GARDENS COMPOSED OF SANDY SOIL REQUIRE MORE WATERING, THAN GARDENS AND LAWNS MADE UP OF OTHER SOIL
Soils that have a fine texture, or tiny elements, hold on to a greater amount of water for a longer time, than coarse soils, that have larger elements and are better drained.
Both sandy soils and fine textured soil for example, can use 4 inches of water. It is just that the fine textured soil can be watered at once, and it will last longer than the sandy. The sandy soil will need to be watered just as much, but in increments over a course of days, until 4 inches are reached. This is because any excess water at any one time will just be drained out the soil.
Sandy soil can be watered with smaller quantities of water that are applied more frequently. Clay or silt soils can be watered less frequently than sandy soils, because they do not leach as much.