Anyway, I was wondering if Christ is referred to as a rose in Scripture and/or where this rose imagery came from. I'm making the connections here because I haven't found any research linking these, but this is what I've learned. I've organized the ideas in chronological order.
1) Song of Solomon 2:1 (960-931 B.C.) - "I am a rose of Sharon, and a lily of the valleys" (ESV). Some have interpreted this verse to refer to Christ--possibly influenced by songs discussed later--but that is an error. The speaker of this verse is the Shulammite woman and you'd have to go through some pretty fancy hermeneutical footwork to make this verse apply to Christ. There are no verses that call Jesus the "Rose of Sharon." (Rabbit trail: The song "Lily of the Valley" [Charles W. Fry, 1881] also incorrectly connects this verse to Christ.)
2) "The Legend of the Rose" (unknown date [post-Christ's birth, pre-16th century]) is a story about a shepherdess who had no gift to bring to the Christ Child. An angel turned her tears into a white rose that she gave to Christ.
3) "Lo, How a Rose E'er Blooming"
This German carol ("Es ist ein Ros ent sprungen") was a work in progress over several hundred years and may have been inspired by "The Legend of the Rose." The first two stanzas were written in German in the late 16th century. They were translated into English by Theodore Baker in 1894. Friedrich Layritz wrote verses 3-4 and they were translated by Harriet Reynolds Krauth in 1875. Verse 5 was translated or written by John C. Mattes in 1914 (cyberhymnal).