How do they do it?

How do pubs put on such brilliant displays of flowers? They must have the feeding and watering down to a fine art.
This was one of our local pubs, Ye Old Windsor Castle, and we had lunch here today to celebrate our wedding anniversary. We had a little glass of Prosecco, a good way to celebrate very many years of marriage.
Tuesday means meeting my WI friends and it was fine and warm enough to meet outside in the afternoon. Tea, home made goodies and lots of good chat. My diet went to pot today!