Alternatively why not have a chat with your local florist, she may be willing to sell you flowers (if you order enough from her) at less than retail prices.
You could try your areas wholesale fruit and flower market, but they may ask for proof of business, letterhead, reciepts etc; as they sell wholesale.

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Rainbow

Quote of the day : "It is much more comfortable to be mad and know it, than to be sane and have one's doubts."
- G. B. Burgin