A tessellation of daffodils. Based on the regular hexagon grid but the spiral outlines reduce the symmetry to p6. Any apparent jaggedness is caused by a Spoonflower bug which squashes the image when applying rulers. See their undamaged version of the repeated image via the embed text link.
Based on the dimensions you provide, this calculator will determine the number of custom-length sections of paper you'll need to cover any surface. If the height of your surface varies, input the tallest dimension in order for the pattern to line up correctly.
Enter your dimensions in feet (1 foot is 30.48 cm).