Glastrum, Woad, Asp of Jerusalem
The Isatis tinctoria (Glastrum, Woad, Asp of Jerusalem) is biannuell, belongs to the Brassicaceae family and is a garden bed, wildflower plant. The flowers are yellow and the leaves green. The herbaceous perennial plant will be up to 150 cm (59 in) high. The soil conditions should be dry, well-drained and the plant area sunny.