NOTE: This is not the crochet pineapple shape. This stitch is an antique pineapple stitch first published in crochet books in the early 1900s.

1st Row – Draw yarn through 4th stitch from hook, skip 1 chain, draw through next chain and draw through the 3 loops on hook; chain 1. * Draw loop through the same stitch as last loop, skip 1 chain, draw through next chain, draw through the 3 loops on hook; chain 1. Repeat from * to end of row. Break off.

2nd Row – Fasten yarn through chain of 1st row; chain 4. Draw loop through 1st space, through 2nd space, through the 3 loops on hook; chain 1. * Draw loop through space last used, through next space, through 3 loops on hook; chain 1. Repeat from * to end of row. Break off. Repeat 2nd row.

Source: Woolco Knitting & Crocheting Manual

1 single crochet in 1st stitch, chain 3, 1 single crochet in same stitch. Repeat in every other stitch.

Source: Woolco Knitting & Crocheting Manual

This video will show you how to crochet a picot stitch.

Make a chain. 1st Row – Make 1 single crochet in every stitch of the chain. Break off the yarn at end of each row.

2nd Row – Work 1 single crochet in every stitch, always taking the stitch from the back.

3rd Row – Work 1 single crochet, then wrap the yarn twice over the hook for treble crochet, sticking the hook in the top stitch of the 1st row of single crochet; then 3 single crochet, picking up the back stitch only; then the treble, and repeat to the end of the row.

4th Row – Work 2 single crochet, then the treble. This brings the treble back of the one in the preceding row. Then 3 single crochet (the 1 above the treble must be taken through the stitch, the other 2 take up the back stitch). Always have 3 stitches between the trebles; in each row the treble will be 1 stitch back of the treble in the preceding row.

Source: Woolco Knitting & Crocheting Manual

1st Row – * 1 double crochet, chain 1, * in every other stitch. Chain 2 at end.

2nd Row – * 1 double crochet in every space, with chain 1 between. * Chain 2 at end. Repeat 2nd row.

Source: Woolco Knitting & Crocheting Manual