Indigo - from fresh leaves to powder

Learn about using fermented fresh indigo (Persicaria tinctoria) leaves to create indigo powder. Edited - Many people have asked about or had troubles with the hydrated garden lime that I mentioned to make your solution more basic in pH. To be more specific, powdered Calcium Hydroxide is what you are looking for. Other types of lime or calcium compounds won't work well, if at all. Also, if your calcium hydroxide is old or has been sitting in the garden shed for a while, test it in plain water first to make sure that it will bring the pH up. Sometimes, it doesn't work well if it is old. Have fun!