Is this suitable for coloring silk?

Hi, Thank you for your question. According to the information on the Dylon website: A few natural fabrics prefer to be washed by hand and do better when coloured with hand dye. These include the likes of silk, wool, cashmere and mohair. ­­ https://www.dylon.co.uk/en/home/blog/which-fabrics-can-I-dye.cky.html We stock a range of Dylon Hand Dyes including Forest Green: https://www.lenehans.ie/dylon-fabric-hand-dye.html