Knowing where the flower arrangement will sit is an important piece of information. To show the true beauty of an arrangement, it must sit in the right amount of light to emphasize certain pieces or accentuate the mood of the arrangement.
Certain textures compliment each other better than others; pay attention to different flowers and foliage to see what really draws the eye. Three different things to pay attention to is color, tone and shade; don't sway too far off the color palette when mixing different flowers together.
Measure out the length of the cut based on the type of vase being used. Flowers should only be one to two times taller than the vase.
Space out the flowers in a way that is pleasing to the eye and not too cluttered. The space between the flowers is an intricate part of the whole arrangement.
There are 10 different forms that are used in arranging flowers: Pyramid, Dome, Crescent, Horizontal, Inverted "T," "L" Shape, Fan, Triangular, Oval and Vertical. Decide if you want the arrangement to flow vertically or horizontally before choosing a form (see Resources).