This is the second thread crochet edging in my Garden Series. "Posies" has just two rows with a very simple scallop. Prepare the towel and begin the Foundation Row as in the Garden Fence Edging. Use a washable marking pen to mark 3/8-inch marks across the edge. Push an embroidery awl through the first mark to make a tiny hole. Pull up the thread a make the first slip stitch on the hook. Chain 4. Use the awl to make several more holes at the marks. (Stay ahead of your crochet about 8-10 holes). *(Sc, ch 3) in the hole at the next mark. Repeat from * across. (See the first part of the tutorial at the above link if you need pictures for this foundation row.)
Row 1: Ch 3; turn. 2 dc in first ch-3 space. Ch 1, (3 dc, ch 1) in each ch-3 space across. Ch 1; turn.
Row 2: Skip next dc. Sc in middle dc. [Skip next dc, 3 dc in ch-1 space, skip dc, sc in middle dc] across to last stitch. Sc in last stitch. Fasten off. Weave in ends.