Its easy to call a flower shop and have them put together some vase full of flowers that get delivered. Wow. Not much thought and effort in that. Sometimes it is the only thing you can do, maybe you have a long distance relationship, thats OK. I get it. If you are close, get your flowers and hand deliver them yourself. Carve out some time not lunch hour and surprise them. Make it special. Write a poem. Make it super corny too. This is a special person, and deserve the attention, right?.