Always interested in botanical gardens, we visited the Bergianska garden which is connected to Stockholm University. We were puzzled by these unusual 'markers'! Then we got an explanation by Ms. Kaili Maide who is an expert in textile coloring with plant material.
The markers show the different hues which are produced using different parts of the same plant for dyeing. Very proud Ms. Maide told us that she was responsible for the planting and caring of these plants as well as developing the dyes.
