Yes, it's time to chop down the lovely Windflowers: they've been wonderful this year, but now the flowers are over, and the foliage is going brown, so it's…
They are happiest in light, sandy humus-rich, well-drained soil.
Sow the seeds in containers as soon as they are ripe.
Pests, diseases or disorders
Watch out for slug and caterpillar damage, leaf spot and powdery mildew.