Haiku is a popular form of unrhymed Japanese poetry, which evolved in the 17th century from the hokku, or opening verse of a renku. Generally written in a single vertical line, the haiku contains three sections totalling 17 onji (syllables) structured in a 5-7-5 pattern. Traditionally, haiku contain (1) a kireji, or cutting word, usually placed at the end of one of the poem's three sections; and (2) a kigo, or season-word.
In other words a Haiku is generally written about nature. I like to write about my garden, so OUR IS ...
pretty garden mine
your blooms bring me so much joy
thank you oh so much