O.K. here is my attempt to explain how to do a shamrock. Hopefully these are more clear.
*Fold fabric in half. We will call this fold "Fold A"
*Pick a point along the fold A. This works better it is off-center so that the length between this point and the top edge of the fabric is shorter than the length between the point and the bottom edge.
* From your slightly off-center point draw a line at a 60' angle in the direction of the bottom of the fabric.
*Align the top portion of fold A with the 60' angle line you just drew(hold your finger on that center point to help keep it centered) We will call the newly created edge/fold opposite of the 60' angle Fold B.

*Align the bottom portion of fold A with the edge at fold B.

*Your piece should be in the shape of a pie wedge(more or less). We'll call the edge/fold opposite fold B...fold C(whooda guess it!)
*Along the edges of your pie wedge you will find you have 6 layers of fabric. Draw your 1/2 heart along fold C.
*Accordian fold along your 1/2 heart line and bind like you would any other heart fold.
*For the stem, accordian fold along fold B, the outermost layer only, starting midway then up to where you have bound for the heart.

*For dyeing, dye the heart area green and carefully dye that little stem green too. I chose orange for the background color of the rest of the piece.
Here is the final product on silk...

Kathy