Hellebores

There sleeps Titania sometime of the night,

Lull’d in these flowers with dances and delight.

A Midsummer Night’s Dream

In Elizabethan folklore, hellebore had the power to repel witches and evil spirits, so it was often planted near doorways. Alternatively, it was gathered after dark on Midsummer’s Eve, then dried and hung in houses and stables for protection.