Natural-indigo workshop was established in 2010.is from the china of a special inheritance and continuation of traditional dyeing technology workshop.from blue grass plant.the extracting and dyeing process of organic sound.massive buleglass planting not only increase the income of local famers and make full use of our country a large number of idle land.on the environment is very favorable.bluegrass is a kind of diseases and insect pects of medicinal plant of planting process.without any pescidies.