There are so many superstitions about keeping things out, in, affecting luck and changing family fortunes by simply hanging various grocery items above one of your doors. Aside from making your house smell nice, things like lemon, fennel, mint, and chili were meant to also protect your house in various ways. Feel free to experiment yourself … but remember, brass, copper and iron are a lot more durable, and don’t go rotten so quickly

Fennel
Fennel is meant to guard against witches – you are supposed to stuff it in your keyhole. I am not sure where you are meant to put your keys while you are guarding against witches though.
Cactus
Putting cactus near the door is a Greek superstition – it is supposed to ward off the evil eye. However, if your cactus is grown from a cutting, it must be a stolen one! Otherwise it won’t root. You just have to surreptitiously bring a knife with you to your friend’s place, chop a bit off and put it in your pocket.
Lemon and chili
Oh, but not just any lemon and chili. Well, okay .. maybe any lemon and chili, but there must be a string pushed through the lemon (not around it), and then through the chili also. Tie it, only at one end, to a nail hanging above the door. This keeps evil spirits out of your house. Unless, of course, you do something silly like bringing in clothes from the washing line at night. (more…)