Have you ever tried extracting colors from plants? There are hundreds of plants bearing beautiful dyes, growing all around us. Yes, some plants are traditionally recognized as basic dye sources, but if you open your eyes and look around, you will find an abundance of color in front of your door. I made a list of plants local to me, but I strongly encourage you to try plants that grow around where you live. And living in a city is no excuse here! I live in a big city myself - but even in Berlin, Germany I found enough plants to make a full spectrum of color.