In the process of making my Cotton Garden quilt blocks I have deviated from the instructions in the pattern a few times. The blocks are 8" which will finish to 7-1/2" in the completed quilt. There are 29 pieces per block and obviously most of them are quite small.
The pattern calls for trimming off the corners 1/8" away from the resulting seam then pressing four of the segments in one direction and the other four the opposite way so they 'nest' when two of the sub-units are joined for each side of the block. Personally I find stitch and flip corners tend to warp even when I press (not iron) carefully. This might just be me but it is real. On these tiny corners I trim away the excess background fabric but leave the focus fabric of the corner intact, see the photo above. This gives me a guideline for trimming and to some extent helps stabilize the corner without adding much in the way of bulk. I then press that seam open.
Finally, when adding the joined 'petal segments' to the center square I press the first two sides in towards the square. This allows me to press the second pair and the corner square seams outwards, preventing a lump where the triangle seam and corner squares meet.
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