Legends about a mythological fern flower are among the most widespread tales in Poland. Acording to Polish folk beliefs, the wild fern, species that normally never bursts into bloom, does bloom with a magickal flower on two special nights each year. This mythical flower appears on the nights of summer solstice and winter solstice, the two transitional nights of the year when the power of the Sun is on its decisive stages.
The legends say that only the fern that grows in the most secluded parts of the forests can bloom with the magickal flower, and sometimes with a magickal fruit as well. It has to be a place far away from the human settlements, where no dog barking, rooster crowing or people talking could be heard. Moreover, most of the descriptions say that the fern flower blooms specifically in uroczyska, a term in the Polish language that describes places in the wild generally connected with magick or with old pre-Christian places of cult.
Lamus Dworski 