I know that the pattern calls for a 9" square but I cut mine 10". I figured that I could get 4 blocks across from selvage to selvage and I always like to have a little more fudge room. I'm glad that I have the extra even though it does waste a bit more fabric. With a quilt like this, losing that little bit more doesn't matter to me. I wanted to make sure those blocks would be big enough when I got to cutting them out. It's been good so far.
I was worried that I wouldn't be able to get a good cut due to the stuffing on some of those flowers. But, so far, it's been fine. I bought an 8 1/2" square ruler by creative grids and that's what I'm using. I have a mat that rotates so I cut 2 sides and then carefully rotate to cut the other 2 sides. I figure perfection is required to get all the components together properly.
Don't hesitate to ask me questions. I have had a couple of ladies that have answered questions for me and that's been so helpful. I'm happy to help in any way that I can.