Ch5, join with sl st in 1st ch to form a ring.
Rnd 1: Ch3. Work 11dc in ring. Sl st to join in top of ch3.
Rnd 2: Ch2. hdc in same st at join. 2 hdc in next stitch and each stitch around. Sl st to join in top of ch2. (24 sts)
Rnd 3: Ch2: Hdc in same st at join. Hdc in next st. *2hdc in next st. Hdc in next st. Rpt from * around. Sl st to join in top of ch2. (36 sts)
Rnd 4: Ch2. Hdc in same st as join. Hdc in next 2sts. *2 hdc in next st. Hdc in next 2 sts. Rpt from * around. Sl st to join in top of ch2. (48 sts)
Rnd 5: Ch2. Hdc in same st as join. Hdc in next 3sts *2hdc in next st. Hdc in next 3 sts. Rpt from * around. Sl st to join in top of ch2. (60 sts)
Rnd 6: Ch2. Hdc in next st and each st around. Sl st to join in top of ch2. (60 sts)
Rnd 7: Ch2. Hdc in same st as join. Hdc in next 4 sts. *2hdc in next st. Hdc in next 4 sts. Rpt from * around. Sl st to join in top of ch2. (72 sts)
Rnd 8: Work one rnd even (same as round 6). (72 sts)
Rnd 9: Ch2. Hdc in same st as join. Hdc in next 5 sts. *2hdc in next st. Hdc in next 5 sts. Rpt from * around. Sl st to join in top of ch2. (84 sts)
Rnd 10: Work one rnd even. (84 sts)
Rnd 11: Ch2. Hdc in same st as join. Hdc in next 6sts. *2hdc in next st. Hdc in next next 6 sts. Rpt from * around. Sl st to join in top of ch2. (96 sts)
Rnds 12 – 18: Work 7 rnds even (96 sts)