Making my Mystery Block of the Month: December 2025

You’ll have seen that I plan to complete Sherri’s mystery block a month quilt and in my last post I shared the test blocks which I made into my fourteenth charity quilt, today I’m sharing the centre block I made for my own quilt.

It’s the final block of the month, and it’s a star as I was expecting - and another scrappy star at that. It’s similar in shape to the April and August blocks, but this time there’s triangles cutting across the edges of the centre square, which gives the effect of having the remaining central square set diagonally.

It’ll make more sense when you see it, but first I had to choose which blues to use for this month’s block. I have three navy fabrics which I’ve been using, but now the quilt assembly is within touching distance I have my eye on having enough of one of those navy fabrics for a border.

Laying two navy and one lighter blue fabric out to visualise how the final block might work

So I used the blue fabric in the centre which reminds me of Portuguese tiles. I know it’s not much and it may not save me anything at all, but my mind is in conservation of fabric mode, so the combination above is the one I was the happiest with.

And it’s a great block to sew, in fact I forgot to take any pictures until this point. Oops.

Three rows of the block sewn together with two rows attached - the final row is adrift and waiting to be attached

And of course having paused for a photo, when I restarted sewing and added that final row I was a little more off with my seams than I was happy with, so out came the unpicker…

Thankfully I was much happier with my second attempt and so next came the borders, and I’m back on the original greens for this block.

The completed block with borders - the original green borders on the top and the neutral borders on the bottom (these remain constant throughout the quilt)

SEE WHAT I MEAN ABOUT THE CENTRAL SQUARE SET ON THE DIAGONAL?

I know now that switching greens when I did, back March, was the right call as I have very little left of the outer green with white circle fabric left. Phew - but I did ponder on that a fair bit at the time!

The final block is now hanging on my bookcase in front of all the completed blocks

So now I have twelve completed blocks, but not yet a quilt.

Next up is finalising my plan for adding the borders and sashing between each of the blocks. I know that I want to use the borders to give the quilt as much width as I can without it looking daft, and I think that I’ve got a plan - I just need to check that I have enough fabric to do it.

As I’m a spatial learner, and like to see how things will work out, that’s likely to mean laying all the blocks and rough measuring the fabric alongside them. I’ll be using the kitchen floor for that!

Look out for a post soon sharing all the blocks together - I haven’t laid them out yet, but I’m pretty sure it’s going to be good!

This is the last mystery block now the work starts to assemble the quilt top, you can also check out my previous posts for my mystery block quilt or the charity quilts made from the test blocks.