Where can I find Japanese Sencha green tea in Essen?

Japanese Sencha green tea can also be found in these cities:

Bochum Dinslaken Gelsenkirchen Moers Mülheim an der Ruhr Oberhausen Ratingen Recklinghausen

You can also find this in Essen:

Tea Accessories Ceylon Fruit Tea Organic Ginger Tea East Frisia Tea Honeybush Black Tea Jasmine Tea Tea Caddies