Answer: I think your plant has lived out its normal lifecycle. Your money plant, Lunaria biennis to be horticulturally correct, is technically a biennial ? meaning it grows leaves the first year and flowers the second. After flowering, it dies. Luckily (or unluckily depending on your point of view) it can reseed itself through the garden quite aggressively. Since yours is in a container, this may not happen in your garden.
The mauve-purple or white flowers are quite striking in the spring and the plant can be appreciated strictly for the flowers alone. The flowers appear in May ? June and the seeds come into their own in the end of July, beginning of August. Many people harvest the seed for floral decorations but do leave some scattered around the garden for the next season?s crop of money.
I'd recommend replacing your plant and when the new one produces seed pods, snatch a few off and save them for replanting. This way you'll never run out of money plants.
Q&A Library Searching Tips