Iris Day
Iris Day is held on May 8. This event in the first decade of the month May is annual. 
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The flowers come in all the colours of the spectrum, except for red. Iris has smooth, erect stem that can reach from 8 to 38 inches in height, depending on the cultivar. Stem can be flat or circular on the cross section. Irises are named after Iris, the goddess of the rainbow in Ancient Greek mythology. There are 260 to 300 species of iris. Most of iris species originate from temperate parts of Europe and Asia. Iris Day is celebrated beautiful and attractive late spring bloomers.
Vincent Van Gogh, famous Dutch artist, painted two pictures depicting irises. These pictures are very famous and highly prized in the art world today.
Similar holidays and events, festivals and interesting facts
World Password Day on May 7 (first Thursday of May);
No Socks Day on May 8
White Lotus Day on May 8 (Theosophy);
Lost Sock Memorial Day on May 9
National Animal Disaster Preparedness Day in US on May 9 (Held on the second Saturday of May);
Fork Day in Japan on May 9
Goku Day in Japan on May 9