In Slavic folklore, ferns are believed to bloom once a year, during the Ivan Kupala night.

In earlier traditions, they must be collected on Kupala night; later, after the arrival of Christianity, the date is changed to Easter eve.

Rue blossoms only on the Ivan Kupala night, and the girl who succeeds in finding a blooming rue will be happy in love.

A prominent Ivan Kupala night scene is featured in Andrei Tarkovsky's film Andrei Rublev.

Kupala Night (John the Bather day) is the feast day of John the Baptist in some Central and East European countries, held near the summer solstice.

During the Ivan Kupala Day people used to sing:

The flower is yellow, but according to legend, it turns red on the eve of Ivan Kupala Day.

Dances took place on Ivan Kupala day, St. George's day, Pentacost, days of harvest, and weddings.

The best known and dramatic among numerous Slavic Pagan fire rituals is the jumping over the bonfire on the Ivan Kupala Day.

The first night of Ivan Kupala Day (Poland, Russia, Belarus and Ukraine)

In Russia, Ukraine, Belarus and Poland, the holiday is practiced on the eve of Ivan Kupala Day.

Ivan Kupala Day is the day of summer solstice celebrated in Russia and Ukraine on June 23 NS and July 6 OS.

Social gatherings like Vechornytsi have a long history in Ukrainian culture, and so do traditional holidays like Ivan Kupala Day, Maslenitsa, Koledovanie, and Malanka, where people gather in large groups.

The term Chervona Ruta derives from the old East Slavic legend, according to which the girl who will find Chervona Ruta on the Ivan Kupala Day, will be happy in love.

For the northern solstice, Christian cultures celebrate the feast of St. John from June 23 to 24 (see St. John's Eve, Ivan Kupala Day, Midsummer), while Neopagans observe Midsummer, also known as Litha.

The ruta flower has yellow blooms, but according to legend, on the eve of Ivan Kupala Day, the flower turns red for a very short time on the eve of the Summer solstice (celebrated on June 23 or sometimes July 7).

Ivan Kupala Day - On the eve of the celebration of Ivan Kupala Day village folks would roam through the forests in search of paporot flower, an elusive and magical flower that brings great wealth.