This is a color chart for a cross bottony, also known as an Apostles’ Cross or a trefoil cross.

I based the chart on on Nancy Spies’ color chart of a 13th century border from an altar embroidery, in her book Here Be Wyverns. The original is a leafy vine border, and each leaf has the “club” shape that’s also found on the ends of a cross bottony. So, I used that leaf as a guide for the exact sizing and spacing of each part of the cross.

The cross itself is 51 stitches across by 51 rows down.