Zinnias, relatives of the aster, are native to Mexico and the southwest United States. Gardeners love this plant for the variety they present: single, double, large and small. The variety of flower colors is vast, with every shade except blue. Zinnias are prolific bloomers and easy-to-care-for plants, providing color not only in the garden, but in cut-flower arrangements as well.
Ensure that your zinnias are growing in full sun. In order to get maximum blooms from each plant, they need a minimum of six hours of sun per day.
Water the zinnia plant when the top inch of soil begins to dry.
Snip off dead and dying flowers and remove them from the planting area. This will encourage the plant to produce more flowers.
Cut the zinnias for fresh flower arrangements frequently. Removing flowers will cause the plant to produce more. Cut the flowers in the early morning and select zinnia blooms that are just beginning to open.
Fertilize the zinnia plant every four to six weeks through late summer with a balanced water-soluble 20-20-20 fertilizer at the rate suggested on the label. Feeding the plant forces it to bloom.