Welcome to the Boucan Stitch, also know as Interlocking Blocks or Grid Stitch. No more cutting off yarn at the end of each row, therefore less tail ends to weave in later.
2 patterns that are worked in horizontal stripes using 3 colours. Pattern No 1 is worked using 3 tr (US:dc) & pattern No 2 is worked using 2 tr (US: dc).
The colour change is at end of each row by dropping the working colour & carrying up & bringing in the new colour in the last 2 loops of last stitch, therefore no need to cut off yarn at each end.
I find this technique neat enough to eliminate edging, but this is a personal choice. If you prefer to edge, there is no reason why you can’t, just remember to keep the same stitch count for each 4 sides.
The Boucan Stitch produces a thick, denser fabric. Work in your own yarn of choice & appropriate hook. This is your project, experiment with colours & yarn & have fun.
The Boucan Stitch patterns are available for purchase in my shop.