Nymphaea 'Blue Aster'

leaf of my tropical Nymphaea  'Blue Aster' sadly it died last winter(2014), it was probably too cold in the winter quarters, I may perhaps buy myself a new as the leafes and flower are very pretty
the flower of this Nymphaea is purple

photo made with nikon coolpix s6200, edited with Gimp, Luminance HDR and ViewNX 2