Annual wildflower with yellow, hooded flowers on stems of nettle-like leaves. Also known as Cock's Comb. Once ripe, the seeds rattle inside the seed capsule - hence its name. Height 5 - 18 ins. Plant is semi-parasitic on grass so is ideal if sowingf wildflowers amongst meadow grasses as it will help keep down the grasses and prevent them from swamping the flowers.
If sowing a grassy are, a half to one gram of seed per square metre is sufficient. Sowing instructions provided.