Short late note:

This bloom caught my attention at Longwood because it really stood
out from the rest of the plant.

There is no post processing here (Its true, well a little crop and a
touch of Unsharp Mask ;o) ). I don't know what it is, but this is the actual plant.

Vincent Versace's comment regarding digital darkroom work " Its great when they don't know
whether you did or didn't work it in PS. Thanks for all the compliments below ;o)