the batting you choose will tell you how close you have to quilt your quilt.
you need to read the batting packages and choose a batt that meets the requirements for the amount of quilting you want to do on the quilt.
some batts have a scrim - like warm and natural- and you can have up to 10" between quilting lines- you can quilt around blocks with it without additional quilting--
and there are batts that do not have scrim--
some batts you have to quilt every 2"- which is a very dense quilting- and there is any other number between.
hobbs heirloom cotton batt needs to be quilted every 2"
there are a few batts that have 4" or 6"...
so, when you go to buy batting read the different packages and purchase the one that sounds like it will work for your project.
it's good to try different batts...i keep a batting journal- so when i am finishing a quilt top i can go through it and choose the perfect batt for that quilt.