This flowered on August 17, 2003 outdoors in my shade aroid garden in Sebring, Florida
Growing outdoors in mostly shade in saturated mucky sand in Sebring, Florida
Philodendron erubescens growing outdoor in Venice, Florida. It's in a pot and in high shade [lots of light, no sun] provided by very tall slash pines.
My Red prince!
At Mitre 10 Garden Centre, Waihi, NZ