Zinnias grow in numerous colors and flower types to suit any floral arrangement--from a simple, elegant vase of colorful blooms to a Victorian basket of flowers. Zinnias are easy to grow, as well as easy to cut for floral displays. Use a floral preservative to keep zinnas fresh for as long as 7 to 10 days in an arrangement.
Cut zinnia blooms in early morning before the heat of the day has time to wilt the stems and flowers.
Choose blooms that are fully open or almost fully open with long stems. Use garden snips to cut the stems and put them in a bucket of water. Keep the cut flowers shaded since they tend to wilt in direct sun.
Take the cut flowers to a cool place. Use garden snips to remove any leaves that will be under water and cut the stems again under running water. Return the flowers to the bucket of water and let them rest for several hours.
Add floral preservative to the water in the vase or other container that you are using. Arrange the flowers as desired and set in a location out of direct sunlight or drafts.