Outdoor wedding flowers need a water source - otherwise they will wilt quickly in the outdoor air. Spray bars are a long brick of Max-Life Florist foam with a styrofoam base, all wrapped in a dark green poly film that helps slow water evaporation.
This bar is so easy I call it "soak and poke". Simply let it "float soak" in water that has been treated with a flower food. Wire to the arch and then poke the flowers in. If the flower stems are soft, give a little cut with your flower knife and push the stem in. Simple and easy!
Before buying your wedding flowers online, be sure and check out info you need to know before order.
Need longer bars? Check out the raquettes which come in a variety of sizes. They are the same as the spray bars, just a longer length.