1. Decide on the height of your vase. Then, use three large widemouthed mason jars for taller arrangements. To help form shorter arrangements, use three short ones.
2. Insert multiple stems of each type of flower into each jar.
3. When you have placed all of your flowers into the jars, gather the stems, and wrap the ends with rubber bands. (Wrap the blooms from each jar separately.)
4. Pick up all three bundles at once, and turn each till the colors and floral combinations please your eye.
5. While still holding all three bundles in your hand, cut off the rubber bands, and place the single large bundle into your vase. You can reposition a stem or two, if necessary.