I am partial to tulips. Giving flowers used to be more than the gesture it is today, it was a way of sending messages. The type of flower and even the colour conveys a different meaning.
Red tulips as my favourite for their meaning.
The tulip originated in Persia, and quite frankly the Persians were a pretty damn romantic lot. There is a legend that goes with the dark red coloured tulips. The story goes that a prince named Farhad was love struck by a maiden named Shirin. When Farhad learned that Shirin had been killed, he was so overcome with grief that he killed himself - riding his horse over the edge of a cliff. It's said that a scarlet tulip sprang up from each droplet of his blood, giving the red tulip the meaning "perfect love." (Not sure why so many 'true love' stories always have to end with death but w/e)
Anyway, it's said that the tulip’s crimson red petals also symbolized the red flames of burning passion and love for one another and that the velvety black center represents a lover's heart, darkened by the heat of passion.