The seed stitch is a simple stitch pattern of alternating single crochet and double crochet stitches. The extended seed stitch is a variation that uses half double crochet (hdc) and treble crochet (tr) stitches instead. The pattern has a slightly more openwork design and works up more quickly than the traditional seed stitch but is still a great textured stitch for items such as scarves and washcloths.
Crochet a starting chain. Any even numbered length will work. This example shows a starting chain of 20.
Hdc in 3rd st from hook.
Tr in next st.
Repeat steps two and three across row, alternating a hdc with a tr all the way to the end, ending with a tr.
Turn. Ch 2. Hdc, tr in first tr. Sk hdc. Hdc, tr in next tr. Repeat across row. There will be one stitch remaining at the end of the row, hdc in that last stitch.
Repeat step five to desired length of project.
This tutorial is a reprint of a crochet article I originally wrote for the Crochet Today blog.