Home Plant List Photo Gallery Calendar Contact Us Pricing Suggested Reading	Polygonum tinctorium Dyer's Knotweed/ Japanese Indigo Leaves of 2-4 plants can dye 4 ounces of wool blue. Full sun. Space 2' apart. Annual $2.50(2")	Galium verum Indigofera tinctoria Isatis tinctoria Polygonum tinctorium Reseda luteola Rubia tinctoria