How to Make a Split HST (or 3-part QST)

making the blocks

Assemble:

(1) 4″ HSTs
(1) 4″ Peach squares

Match a 4″ HST block with a Peach 4″ square, right sides together.

Close-up of quilt fabric squares with different textures and colors.

Draw a diagonal line on the back the HST, bisecting the seam. Sew 1/4″ away from each side of that line. Cut on the line and press the seam open.

Square up this block to 3-1/2″. You will make (2) Split HST blocks.

Clear quilting template for precise fabric cutting and quilt making.

Note that the two Split HST blocks will be mirror images of each other.

Colorful fabric bunting for quilting projects and decorations.

Sew these two together to make a Crocus block, as used in the Key West pattern, or use it in a Chain Link block.

Close-up of fabric patchwork quilt piece with vibrant colors and precise stitching for quilting enthusiasts.

Kris Driessen brings warmth and creativity to every corner of the quilting world. A former quilt shop owner and passionate pattern designer for PhoebeMoon Quilt Designs, she’s spent years inspiring quilters of all skill levels through her clever designs, time-saving techniques, and hands-on teaching. Whether sharing beginner-friendly projects, guiding advanced quilting methods, or creating step-by-step tutorials, Kris loves helping others grow in their craft. You’ll find her tutorials and quilting know-how woven throughout Quiltweb, alongside the guilds, shops, and community resources that make this site a one-stop home for quilters.

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