It could be normal. It depends on what kind of variety you had, for example, English lavender can last over ten to fifteen years and some other kinds only a few years.
Ahaha, did you know that back in the old days that is how they kept the clothes fresh for all the aristocrats and stuff? xD I learned that last year visiting one fancy castle in Northern Ireland, the guide was so enthusiastic.
Yep, lavender is pretty effective for better sleep. I use the oil though.
I don't remember the variety of lavender that died, but fortunately I remained alive :>)
The idea to put lavender in my drawers I think came from remembering my mother using little bags of flowers (sachet?) that way. Now that I don't have the flowering plant, I use an oil as well.
Have a sweet smelling day @m31