Coral stitch is also known as coral knot, German knot stitch, knotted stitch, beaded stitch, and snail trail. It is also incorrectly known as scroll stitch. If you compare the two stitches you will see the needle is wrapped in a different manner producing a different look to the line.
Coral stitch is an old embroidery stitch which creates a line that looks like a row of knots and is used for outlines as it follows a curved detail well.
It is also a very useful stitch for twiggy bits in a floral design. If you work it in a very precise manner with knot spaced at exact intervals coral stitch can also be used to create a knotted filling with the knots forming a secondary pattern across the filling.
How to work Coral Stitch
Coral stitch is worked from right to left. To work bring the thread up from the back of the fabric and hold it loosely on the surface of the fabric with your thumb.
Insert the needle at a slight right angle, above the line to be worked and bring it out just below the line to be worked and under the fabric that is laid flat to the fabric. Wrap the thread under the needle as illustrated.
Pull the needle through the fabric to form a knot.
Continue in this manner along the line.
Coral stitch can be varied by altering the angle of the needle as it passes through the fabric. Some people work this stitch with the needle entering the fabric in a vertical position as it passes through the fabric. This will produce a tighter knot. By altering the spacing of the knots along the row the stitch can appear to be different.
The effect created is also altered by the weight and twist of the thread used. This sample was worked using perle # 5 cotton however experiment with threads as this stitch looks good worked in thicker threads or even a fine ribbon.