I've just went to Flowers by Terry to buy some flowers for a party/BBQ. I wanted some sunflowers (5) and added some white flowers (nothing fancy, looked like wild flowers) and some onion flowers. It looked nice in the end but when I got the bill I almost fainted: $83 CAD. It is by far the most I paid for sunflowers and I will never return to Terry.
So my advice, avoid it, if you can.