Corsage and Boutonniere

Its between white roses and white orchids. Lets compare.

White Rose

innocence and purity
early on, symbolised true love (now the red rose)
now symbolise young love
secrecy
often depicted stained by blood or made to blush from a kiss
honnor and reverance
rosebuds represent being "too young for love"

White Orchid
purity
love, respect, adortion
delicate beauty

I think I'm going with the white rose.