I took this snap just outside of a lavender distillery, in Apt:
Well, I can’t say it surprised me, but when I went up to the stuff and stuck my hands in and pulled out a huge amount and put it up to my nose and smelled it – no smell at all! Not only no lavender smell, but also no rotting smell. My guess is that if they subject the lavender leaves to high temperatures then this more or less sterilizes the organics, and it probably takes a while before bacterial action sets in and it begins to compost.