Flowers like lilies, gardenias, hydrangea, and peonies tend to be more expensive and some can only be found at certain times of the year. I would say bridesmaids bouquets can range from $20 - $70 depending on size and types of flowers. I would say a bridal bouquet could range from $40 - $200 also depending.lowers like lilies, gardenias, hydrangea, and peonies tend to be more expensive and some can only be found at certain times of the year. I would say bridesmaids bouquets can range from $20 - $70 depending on size and types of flowers. I would say a bridal bouquet could range from $40 - $200 also depending.