Just a quick post to show how pre-soaking casuarina leaved in iron water affected their colour on the fine wool.

I used the same materials and the same folds, simmering for the same period.  This piece with the spiky shook leaves pre-soaked in iron definitely has more noticeable markings but it also has dulled the brightness of the yellow I got from the rhubarb in the first piece repeated below.

Lightweight wool, casuarina leaves, rosemary bunches and rhubarb, simmered in rhubarb and water , in the presence off some small amounts of cochineal.