In the tenth row you will have 9 double crochets between 2 double crochets. Take care to have all the increases in a row from center out.

7. Work the next 4 rows without increasing.

8. On the next row, make 1 double crochet around the first stitch of the row below;

and continue in this way to end of row. Join.

9. Make 2 rows without increasing. Break off yarn and tie on the trimming yarn.

10. Work 1 row of double crochet all around without increasing.