When do you plant dahlia flowers?

Learn how to plant, grow, and care for dahlia flowers with this garden guide from The Old Farmer's Almanac. read more

Dahlias are colorful spiky flowers which generally bloom from midsummer to first frost, when many other plants are past their best. In the cold climates of North America, dahlias are known as tuberous-rooted tender perennials, grown from small, brown, biennial tubers planted in the spring. read more

Flowers can be less than 2 inches wide or wider than 10 inches -- affectionately called dinner plate dahlias. You can choose from 50,000 varieties. If you can grow tomatoes, you can grow dahlias! With just a little preparation, you can harness the fantastic bloom power of dahlias in almost any sunny space. read more

Dahlias make excellent cut flowers, which will typically last about a week in the house. Growing Requirements of Dahlia Plants. Dahlias are summer blooming tubers that are generally only hardy in USDA zones 7-11. In the majority of the country, Dahlias must be planted each spring and then cut back and dug each fall after the first killing frost. read more