Pink Calla Lily
The next day, afternoon, John summoned George in the living room.
"George, I want you to locate a flower shop near the area where Catherine was currently staying. Order pink Calla Lily and it needs to be delivered to her place every five days. Instruct the florist to deliver the flower every five days without fail I will pay in advance for one-month delivery. Here is the message they need to write in the card..."
John handed the piece of paper with the written message on it to George. The bodyguard put it inside his wallet.
"Tell the florist that my name must not be disclosed to Catherine no matter what happens. If Catherine starts asking who is the sender just tell her that the sender just wishes to keep himself anonymous."
John chose pink Calla Lily because it specifically symbolize appreciation and admiration and pink is also Catherine's favorite color and besides the flower can also last up to one week in a vase as long it's taken care well by watering properly.