• Edyta

Mystery Quilt 2020 – Block 15

Updated: Jun 24

All good things must come to an end. I am so thankful that I had the honor of quilting with you for the last 15 days!

WE DID IT! We made it to the last block of our Mystery Quilt!

Let’s get these last blocks done and see the result.

For Block 15, you will need: (choose the fabrics shown above from your Super Bloom bundle)

  1. Fat eighth light fabric

  2. 10″ pink square

  3. 10″ blue square

We will be making 4 blocks. The cutting directions are listed below:

  1. 16 light half-square triangles cut from 8 squares 3-7/8″

  2. 8 pink half-square triangles cut from 4 squares 3-7/8″

  3. 8 blue half-square triangles cut from 4 squares 3-7/8″

Start by making blue half square triangle (HST) unit, join one 3-7/8″ light half-square triangle and one 3-7/8″ blue half-square triangle.

Trim HST units to 3-1/2″ x 3-1/2″ using your ruler.

Next make pink half square triangle (HST) unit, join one 3-7/8″ light half-square triangle and one 3-7/8″ pink half-square triangle.

Trim HST units to 3-1/2″ x 3-1/2″ using your ruler.

Push your HST unit seam allowance toward the dark fabric.

Arrange HST units into block as shown above.

Need more assembly detail? Click here for Mystery Block 15 on the Laundry basket Quilts YouTube Channel

Sew HST units into rows and push seam allowances in opposite directions.

Pin and sew rows together.

Trim and square your blocks to 6-1/2″. I use my 6-1/2″ Creative Grids ruler and OLFA Spinning Mat.

Repeat until you have completed 4 Mystery Quilt Block 15s.

Our final blocks will be positioned as shown above in our Mystery quilt! Note the rotation of the block in quilt layout.

Join me on Monday to start sewing blocks together and the “Final Mystery” for this quilt.

Yes, you heard me right, I have a handful of surprises for you on Monday!

Click here to download a PDF copy of Mystery Quilt 2020 Block 15


Visit our website for the California Pattern.


Happy Quilting! Edyta Sitar

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