I used to have a clay type soil in my garden. We brought in some new top soil, during the last couple of years to loosen it up, now I'm finding it is too sandy or sifty, as it dries out quickly. At the time of buying it looked good. It was supposed to be part/top soil/ humus and sand. It had a rich black color, but when it dried it didn't look too rich. Now, I would like to know what to buy to dense it up some, or do they even sell what I'm looking for. Any suggestions. Thanks.