I had my 15,000 sq foot back yard hydroseeded in April. The shady areas look pretty good but the full sun area is heavy crabgrass. It doesn't look like there is any grass at all, just solid crabgrass. I did water like crazy but still only got crabgrass. I just had sprinklers installed. Probably should have done it before the hydroseeding. What do I do now? How can I overseed if it is all thick crabgrass. It is about 10,000 sq feeet. Any ideas?