How long have you had sand?
And what kind of sand do you use?
I got the sand from Home Depot - the kind used in kid's sandboxes. The sand has been here for about 3 years but it was several tons delivered & had a different purpose originally. It seems to hold the moisture longer than regular soil & unlike soil it does not mold.
Glad you mentioned this.. We will ask for this kind of sand.. Hope it is nt the clumping..does sand clump?