Japanese Indigo
Persicaria tinctoria
This is a mix of  a few varieties but all Japanese Indigo.
 
Japanese indigo has been cultivated for centuries in textile art and is natures true blue dye. It takes some exploring to build a relationship with indigo but a beautiful and rich experience will unfold.
 
There are many books and teachers I have learned from over the past 27 years of learning about natural Dyes.  I was first introduced to exploring natural pigments from a textile teacher in college who at the time did not have a formal class dedicated to entirely natural dyes but would included ancient concepts throughout our fiber studies.  We explored indigo and dyed raw wool that we then created a large group felted wall hanging using our feet as agitation based on Turkish rug making techniques.
 
Many other modern teachers are sharing about learning how to extract the pigment from fresh leaf, fermented and also dried methods.  Many resources to purchase supplies from and I hope to share a more robust resource list here soon.  In the meantime I have learned from Maiwa (based in Vancouver Canada) and Botanical Colors is a local Seattle company who supports guest teachers.  My list of small independent teachers will be coming soon along with my own tutorials and workshops this summer.
 
I will also have some dried leaf Indigo for sale soon and will share my tutorial for dried leaf extraction.
I will update