This is worked from side to side, bottom to top. You cut the yarn at the end of every row, so you have several choices. Incorporate the ends as fringe (I don’t like fringe much, and definitely not on the sides of a blanket), weave in a bazillion ends (HAHAHAHA! Yeah right), or do an envelope border.
I did the envelope border on this. There are video tutorials on it, but you surface slip stitch all the way around the top of the blanket. Then on the wrong side, you work several rounds of double crochet (I did 3 rounds) in the back loop of the slip stitches (this is the worst part of the whole blanket. It took me four hours to do the first round because it’s a pain to get the hook in that tiny space, but it’s worth it. The remaining rounds went way faster). After you work a few rounds on the back, you cut the yarn and flip over and work through the back loop of the slip stitches on the front. This side is much easier to work than the first round.
Once you finish your final round of double crochet (again, I did 3 rounds), you then join by single crocheting around through both layers. This creates an envelope that hides those ends. I love how it the border is sturdy. I hate it when I do a single thickness border that is floppy and looks too wimpy.
Anyway, I hope my novel length description didn’t scare you away. Do try it!