The couverture blanket takes the granny square everyone already knows and rearranges it into something far more interesting. Instead of a grid of identical squares, this design mixes three shapes – squares, rectangles and L-shaped pieces – and fits them together like tiles so the seams travel across the blanket instead of lining up in rows.
It looks harder than it is. The individual pieces use standard granny-square construction, so if you can work a round of clusters into a chain space you already have the only stitch skill this blanket asks for. What makes it different is the layout: the pieces are crocheted separately, arranged, and then joined in a set order.
What makes it work
The interlocking shapes do two useful things. They break up the repetition that makes a plain granny blanket feel flat, and they give you somewhere to put odd amounts of leftover yarn without the result looking accidental. A single accent colour running through the L-shaped pieces is usually enough to pull the whole thing together.
Before you start
Work a test piece of each shape before committing to a full blanket. The squares and rectangles need to end up the same height so the rows sit flush when you join them, and that depends on your tension more than on the hook size printed in any pattern. Adjust your hook until the pieces match, then multiply up to the size you want.
Join as you go if you would rather not face a pile of loose motifs at the end. Working the join into the final round of each piece keeps the blanket growing steadily and saves a long seaming session later.
If you are new to motif blankets, a simpler granny project first will make this one much easier to read.
