Garden superstition

So my parsley this year is terrible, I've had about 5 sprigs from three rows, and it reminded me of the saying Parsley grows where the missus is the master, to put it another way where the missus is the master parsley grows the faster.

There are loads of superstitions around vegetable, herbs and wild bounty and I thought this might be a good spot to collate them. 

So, Parsley is a funny one, as there's another saying that parsley goes to the devil 9 times and very often forgets to come back, meaning that it is a devil to germinate.

Plus you should never give away parsley for fear of bad luck, or transplant it for that mind. (I'm guilty of that one, which is probably why mine isn't growing.!)

I also like the blackberry saying don't pick after all hallows eve as the devil will have infested the berries. Which to be fair is pretty accurate, that late in the season they are normally full of grubs.

What superstitions do you remember, or have been told? I'm sure more will come to my mind shortly.