Hairy Bittercress (
Cardamine hirsuta) is a common weed of gardens, greenhouses, paths, railways and waste ground. It is a plant ideally constituted to be a weed - it likes disturbed ground and bare soil; it can grow from seed to a plant shedding seeds within three weeks; it has pods that explode sending the seeds a distance from the plant; and the seeds can remain viable within the soil for at least ten years.
I wonder how many gardening years of work are spent getting Hairy Bittercress out of our gardens?