The unisex [Radley] means "from the red meadow"
Maybe a female version of Pyrrus? Like Pyra or Pyrria?
from the Greek name Πυρρος (Pyrros) which meant "flame-coloured, red", related to πυρ (pyr) "fire". This was another name of Neoptolemus the son of Achilles. This was also the name of a 3rd-century BC king of Epirus. (behindthename.com)
I know of a little girl actually called Red-Roses... Wouldn't recommend it though!