Dahlia is a genus of tuberous plants that are members of the Asteraceae family. The tubers are planted in the ground in late spring, around May, and generally flower from July to the first autumn frosts. Dahlias are perfect for a border garden and make lovely cut flowers.

The flowers can range in size from petite 2 to 15 inches. Most varieties grow 4 to 5 feet tall. Dahlias grow in a wide range of beautiful colors. 

Dahlias prefer 6 to 8 hours of direct sunlight. Dahlias prefer rich, well-draining soil with a pH between 6.0 and 7.5.