For all jersey fabrics at Jurkenzus: wash in the washing machine at 30 degrees, do not tumble dry. Iron on low temperature. Do not bleach. Dry cleaning is allowed, but only with agents such as perchlorethylene, not with trichlorethylene.
I wash my fabrics with a detergent for delicates, without fabric softener on a short program, 30 degrees with a 800 rpm spin cycle. My advice is to use a drying rack to dry the fabric (not on a clothes line because the fabric will stretch too much in the middle), inside or outside in the shade.