Blackberry salad stitch

Multiple of 4+1
(add 2 for base chain)

First row: ( right side) skip 3ch (count as 1dc), 1dc into each ch to end, turn.
Second row: 1ch, 1sc into each of first 2sts, *work dc5tog into next st, 1sc into next 3sts; rep from* to last 3sts work dc5tog into next st, 1sc into each of last 2sts (including top of tch), turn.
Third row: 3ch (count as 1dc), skip first st, 1dc into each st to end, skip tch, turn.
Forth row: 1ch, 1sc into each of next sts, * work dc5tog into next st, 1sc into each of next 3sts; rep from* ending 1sc into top of tch, turn.
Fifth row: as third row. Rep 2, 3, 4, 5, rows.