Planting a large mass of flowers in one color, such as white, can create a stunning display. The white flower garden is beautiful at night when moonlight shines on the white flowers. In fact, some of the most magnificent white flowers to use when you design a white flower garden open only at night. For example, the moonflower vine and white Datura. Other plants that produce white flowers and bloom during the day are annuals such as white zinnias, or perennials such as star jasmine, night blooming jasmine, shasta daisy, gardenia, spirea and yucca.
Determine where you would like to place your white flower garden. For example, should it by a pool, a walkway or visible from the house? Write down the sun exposure of the proposed white flower garden because some white flowering plants may prefer more sun or more shade than is available at your proposed site. Also, notice the proximity to water so you can provide supplemental water if needed.
Measure the area where you plan to put your white garden, to give you an idea of how much space you are working with so the plants won't be overcrowded. Draw the garden space from an aerial perspective or a bird's eye view.
Draw rocks, water faucets, pathways, fences or any other permanent structures that exist in the garden into the diagram because they cannot be moved and will affect your plant choices.
Find a list of plants that produce white flowers or foliage. Look at the characteristics of each plant that you find attractive. For example, find out if the plant you like is a vine that needs support, a ground cover, a shrub or a tree. Also, find out what time of day and what part of the season it blooms, how big it grows and if it will overwhelm the garden with green growth after a short bloom period in the spring or shade out smaller plants. Find out if the plants you have chosen prefer the same amount of sun or shade your chosen location can provide. Notice if the description of the plant recommends the plant for your USDA horticultural zone so your chosen plants can thrive in your area. Find a mix of annual and perennial plants to give the garden texture and variety.
Draw an area in the garden diagram where each plant will go keeping in mind the eventual spread of each flowering plant or shrub that you have chosen for your white flower garden. Label each plant represented in the diagram.