Christmas Tree Skirt made with granny squares

Thanks  RLHulin@aol.com

Knitting worsted weight yarn, 8 ounces each of bright green, red and white.  Crochet hook size G. 

Square: Starting at center, ch 4, join with sl st to form ring.
Rnd 1:  Ch 3 (count as 1 dc), 2 dc in ring (ch 3 for corner, 3 dc in ring) 3 times, ch 3, join with sl st to top of beginning ch 3 - four corners, fasten off.

Rnd 2: Join yarn to any ch 3 sp, (ch 3, 2 dc, ch 3, 3 dc) in same sp, (ch 1, 3 dc, ch 3, 3 dc) in next sp 3 times, ch 1, join, fasten off.

Rnd 3: Join yarn to any ch 3 sp, (ch 3, 2 dc, ch 3, 3 dc) in same sp, *ch 1, 3 dc in next ch 1 sp, ch 1, (3 dc, ch 3, 3 dc) in next ch 3 sp, repeat from * 3 times, ch 1, 3 dc in next ch 1 sp, ch 1, join, fasten off.

Rnd 4: Join yarn to any ch 3 sp, (ch 3, 2 dc, ch 3, 3 dc) in same sp, ch 1 *(3 dc, ch 1) in each of next 2 ch 1 sps, (3 dc, ch 3, 3 dc) in ch 3 sp, ch 1, repeat from * 3 times, (3 dc, ch 1) in each of last 2 ch 1 sps, join, fasten off, leaving a length to sew squares together.
 

Abbreviations:

st (stitch)
dc (double crochet)
rnd (round)
ch (chain
sl st ( slip stitch)
sp (space)
 

TREE SKIRT: Makes 60 squares, with rnd 4 worked in green on all 60 squares
and other rnds as follows:
 

A - Work 24 squares with green through rnd 1, use red for rnd 2, and white for rnd 3.

B - Have red centers on 24 squares, with white for rnd 2, and red for rnd 3.

C - On 12 square, begin with green, use white for rnd 2, and red for rnd 3.
 

Arrange squares as follows:
 

                                                   A
                                                 ABA
                                               ABCBA
                                             ABCBCBA
                                           ABCBABCBA
                                         ABCBA ABCBA  ****
                                           ABCBABCBA
                                             ABCBCBA
                                                ABCBA
                                                   ABA
                                                      A
 

**** Between the first four squares and the last four you leave one space with no square for the tree trunk.  You can also choose to not sew the 6th and 7th rows, on only one side, so that the skirt can be wrapped around the tree. 

Arrange squares as shown in chart and sew together by over casting back loops. With green, sc around edges. 

TASSELS:  Cut 8-inch strands of red and white.  Holding 3 strands red together, fold in half, and slip knot in any ch 3 sp at outer edge of skirt.  Alternate red and white around.
 

Thank you, Linda H.