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Are Dahlias Annual or Perennials?

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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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