dry sand rock garden with 6' sand?
I read a rock garden book about dry sand rock garden. It says put at least 6" sand on the garden. It prevents weeds better too. However, I just don't understand how the plants especially little seedlings can survive within just the sand. They cannot get any nutrients from the sand. Even if there is nutrients from good soil mix underneath the sand, the little plants' roots cannot reach to the bottom yet. How does it really work, or how may I make it work. I do want to try dry sand bed, if it really prevent weeds better. Thanks