Barbara, I asked Erica what she did assuming she cast on fewer stitches and less repeats but she replied that she followed the pattern as is and stopped after 2 balls. I hope this makes sense because that's what I'm going to do. I had to order tons of stitch markers online as our local craft store doesn't stock these items (I live in Hawaii) so I haven't started Birch (for the second time). I'm using Kidsilk Haze in Marmalade.
Does it come to a point? I thought you had to finish it to get the full triangle.