Some fabrics have a directional print. Using such fabrics in quilts sometimes requires the purchase of more fabric than recommended because special cutting is necessary.
The scale of a print fabric is important. If a print is too large and it has to be cut into very tiny pieces, the design will be lost. When purchasing fabrics, examine the print and consider how it will look when cut into small patches. Will the color be lost? Will the motifs disappear when cut?
Although each pattern has a list of materials needed to construct the quilt as shown, you may already have a stash of purchased fabric on hand. If you have been quilting for some time, you probably already purchase fabrics in favored amounts - 1/4 yard just to add it to your collection; 1 yard if you really want it, but don't have any idea what you will do with it; 3 yards if you know you will use it in a quilt; and 5 or 6 yards for use as a backing.