The admission causes me a degree of discomfort, having on numerous occasions made my admiration for weeds a matter of record, but even I find it hard to wax lyrical about hairy bittercress.
It’s also something of a gremlin in the garden, and you need be in no doubt that you will have hairy bittercress in your garden. Possibly also its cousin, wavy bittercress (Cardamine flexuosa) – very similar in appearance, though the small white flowers have six stamens to the four of its nominally more hirsute relative (the hairs on the leaf margins and axils aren’t particularly noteworthy, in spite of the name). As long as extremes are avoided, bittercress can’t bring itself to be discerning over the pH of the soil, seeming just as at home in acid, neutral or alkaline conditions, and will grow in shade, part shade or sun, in either moist or dry conditions. A hardy annual (C. flexuosa sometimes persisting as a short-lived perennial) it behaves as an ephemeral weed, producing several generations in one growing season, and each plant can produce up to 5,000 seeds.
|Not wavy, but downy. Four stamens, so Cardamine hirsuta|
|The ripening seed pods, or silique, ‘overtopping’ the flowers|
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