Are Dahlias Annual or Perennials?

DAHLIA image by ATHOSLECHIEN from <a href='http://www.fotolia.com'>Fotolia.com</a>
Dahlias are perennial flowering plants. Tubers grow 3 to 4 inches in the soil and spread wider each year. The blooms come in a variety of colors, such as pink, orange, white or purple.
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Living in Southern California, Shayne Ochoa has been writing professionally since 2005. Her articles have included topics on education, child development and gardening. She also holds a Bachelor of Arts degree in liberal studies from California Baptist University in Riverside.