Just curious if anyone knows anything about the guidelines for rock. I have a hard time getting over to the HOA offices so if I can get around picking up a sample, I'd prefer that. Or does anybody know if the garden center (or whatever that little house in the north shore model village is called) keeps samples there as well? Just looking for some general information (like style, size and color limitations) since I'm sick of bark. With rock being so close in price I'd rather just put that in this year instead.