SOLVED. Children/ YA Fantasy - A little girl (10-16 yo) that grows a flower on her back. [s]

[Constantina]

I think I read it 7 years ago.
I remember she was from another world/realm and she was sent to humans as an experiment (to see if the species could integrate in the human world). In the spring season she would grow a flower on her back. She met a boy from the other realm that explained her that in the season girls would grow flowers and boys would create polen at their wrists and by polenization they would leave the girl pregnant (kind of cool concept!).
I also remember she did not have red blood but rather an incolor liquid like most flowers do.

[Becca]

Wings by Aprilynne Pike?

[Constantina]

Becca wrote: "Wings by Aprilynne Pike?"

Yes yes yes! Thank you! <3

[Kris]

Glad you found your book, Constantina.

Wings (book 1) of the Wings series by Aprilynne Pike - Becca's find.