This is a photograph of a gardenia flower. It had recently rained, leaving water drops on the petals.
This photograph can be used in poetry in a number of ways.
A poet could write about: gardenias, flowers, scent, rain, nature and other related topics.
The photograph could also inspire a poet to write a poem about a scene where this flower may be. For example, a poet might write about a wedding that had white gardenia flowers.