How To Crochet Flower Popcorn Stitches Tutorial 41 Part 1 of 3. Free how-to crochet tutorial will show you how to make flowers with petals made of popcorn stitches. The length of petals depends of posts that you make a popcorn stitch from. You can make a small popcorn of double crochet stitches or big popcorn of double treble crochet. Even for beginner these flowers won't take much time and skills. Thanks for watching. Flower was made with Crochet Hook 2.25mm (which is #2 US standard) and with yarn: 55% Cotton, 45% Poly Acryli, 160m/50g.