Begin by choosing what color flowers can complement or accent the palette used in the wedding ceremony. Use flowers that are seasonal, so they will be easier to find and less expensive. Flowers come in hundreds of different colors, so using them to add a bold splash of color during the reception can bring elegance and style.
Check out a farmers' market or other outdoor flower retailers. Often, farmers' markets have a large variety of seasonal flowers for a great price, which makes it affordable and easy to purchase. If you see flowers you like, speak with the grower and ask him if you can place an order for a later date. Many major cities also have locations where you can purchase single flowers in bulk, so you can create your own wedding flower centerpiece for half the price of a florist.
Next, pick out what style vase would match the decor of the wedding. Vases are the most common choice to put flowers in, but other items can be used including antique jars or bottles. The vase size is also important to think about. Large, towering vases that hold long-stemmed flowers look very elegant but can make it hard for guests to see each other across the table. Low-profile vases can be easier to accommodate guests who want to socialize.
Arrange the flowers in the vase, adding accents like crystal or blue marbles in the bottom to give it a more classic look.
Set each vase on the tables where desired. Allow one guest per table to take them home at the end of the party, so that they can be enjoyed longer, making it much more worth the money spent.