Jamie says that before they even ask this question, Mark and Melanie need to look deeper—down to the dirt. "What I say to most people is make sure it's a fairly sandy compound. Then you get large granules of sand and what we call 'macro pores,' or spaces in between where oxygen and nutrients and water can flow freely. And also the rhizomes (typically horizontal plant stems that grow underground also known as rootstalks) of the turf can get through the soil very easily," Jamie says. "Make sure that's right first, then you can get on with laying your sod."