Caron Wildflowers threads are a single strand hand-dyed cotton in variegated colors. The Wildflower threads have more of a matte finish when stitched. You can use one or more strands as required by the ground fabric. One strand is approximately the same weight as flower thread or medicis wool. It is between a #8 and #12 pearl cotton in weight. Wildflowers threads are available in all the same colors as Watercolours and the two threads can be used very successfully together for hardanger embroidery.