Color range includes orange, pink, purple, red, scarlet, yellow, and white. Some flowers are striped or tipped with a different color.
Dahlias begin blooming in early summer and continue to frost.
Flower production may slow with high summer temperatures and moisture stress. Dahlias can be started from dormant tuberous roots, grown from seeds, rooted from cuttings, or purchased as transplants. Because dahlias are hybrids, plants grown from seeds do not completely grow true to type. To ensure cultivar consistency, buy tuberous roots of named cultivars and save the tuberous roots from year to year. Types of Dahlias Dahlias are classified according to flower shape and arrangement of petals.