Just opened flowers have a strong clove-fragrance. When the flowers are opened longer, the petals change in colour and the pollen dry out or get "nicked" by the (Bumble-)bees, the clove-scent disappears and just a faint wild-rose scent remains or fragrance is (almost) completely absent.
Just like the seedling that flowered last year (froze to death in the last winter), this seedling from 2011 doesn't have a hunch of the scarlet, that the mother(hip-parent) displays.