Stable edge to stop stretch
Over time, the edge of a crochet blanket often gets fluted, stretched, even thin with use.
To get around that, I usually add one or more rows to stabilise the edge. You’ve probably noticed that the smaller the stitch, the less “give” or stretch it has. Here are a few of the methods I’ve used.
Several rows of dc (US sc) - a band that is much less stretchy and much more stable.
Row of dc (US sc) worked into both back loops -
Row of dc (US sc) worked into both back loops, 1 ch, sk1 -
Row of sl st worked into both back loops -
Row of sl st worked around body of sts -
There are other variations I’ve used, but they’re mostly variations of these. Working into both back loops makes the edge really stable and tends to keep the edge from curling forwards.
Hope that’s helpful!