The answer is NO, of course! This is a real “good do-er” of a plant and it’s in full bloom everywhere at the moment. The Latin name is Lunaria annua, but it is called Honesty, Moonwort, or Money plant. The “Moon” tag refers to the shape of the seed pods, and also the “Money” tag, because the seed cases look like silver coins. You can eat the young leaves in salad (it tastes a bit cabbage-y) and the seeds make a mustard substitute. Even the peeled roots can be eaten, and there is research into whether a fatty acid from the seeds can be used medicinally for Multiple Sclerosis.
I inherited Honesty 30 years ago, and the “common” (pretty garish) purple one comes back every year from seeds. I picked up some seeds of “Corfu Blue” from Anna last year, who in turn got them from Margaret, via the Plant Sales Table – there’s a CABAHS Membership advantage for you, working at its best! Corfu Blue are a much paler colour, rather easier on the eye. You can really see the difference in this photo:
Anna has grown the most beautiful one with purple stems this year, we must try to get seeds from her..!
I know you can get white versions too, and if you grow any others, please send in a picture, you really cannot have too much honesty!