plant lavender for good luck

I was looking for this Shakespeare quote : "And worse I may be yet: the worst is not 
So long as we can say 'This is the worst." 
— William Shakespeare (King Lear)

but fell for this one instead...
«There's a few things I've learned in life: always throw salt over your left shoulder, keep rosemary by your garden gate, plant lavender for good luck, and fall in love whenever you can» — William Shakespeare