Yet another symbolic flower from the United Kingdom: flax is the emblem of Northern Ireland, and even appeared on the reverse of the British one pound coin in 1986 and 1991. I'm intrigued by it, because it's one of the few truly blue flowers I've run across. I used Sky Blue, along with a trace amount of Royal Purple (both by AmeriColor). Along with this light blue stiff consistency royal icing loaded in a bag fitted with a #101 petal tip, you'll also need yellow icing in a bag with a #16 star tip, a glue stick, parchment paper squares, a flower nail, a Styrofoam brick to rest the nail in, and a dusting pouch filled with a 50/50 mix of powdered sugar and cornstarch. If you'd like to cheat a little to get those petals really even, stick a template decal for the apple blossom and primrose to the flower nail.
cherry blossom, and can also be found in red.