crochet stitch No 13 (christmas trees)

Pattern :
for this project start with 27 chain (12 chain +1 chain  for any tree) 
 1 row - *sc(single crochet),skip 1 chain ,sc again * repeat this until and the end of row
2 row - repeat the first row (  *sc(single crochet),skip 1 chain ,sc again * repeat this until and the end of row )
3 row  - * 1 loop ,sc(single crochet) , chain,sc the next 5 chain  ,skip 4and the 5 chain slip stitch in the first row, 5 ch again ,skip 4 chain and sc in the row to work,1ch,sc , 5 chain slip stitch in the first row, 5 ch again ,skip 4 chain and sc in the row to work,1ch,sc* repeat this until for the 5 row,7row,9row,11row etc.... 
 4 row -  1loop, sc - ch -sc, *ch skip 1 dc * repeat this until 4 times (see the video how) , sc-chain - sc,*ch skip 1 dc * repeat this until 4 times ,  sc-chain - sc,
and the next repeat the 3&4 row  depending on the length of our creation .