You are right, the fragrance is just out of this world
I think it is the scent that calms them down that way.
This is one secret of lavender. It's cool and has a calming effect. No doubt the bumblebees couldn't resist it.
And I guess it's an awesome experience for you to have them crawl right inside your palm 😀. I wouldn't dare that.
You are welcome.
Haha! Not so much awesome, but, I cannot believe how very docile they are1
It is true, the perfume calms them down. :)