When Do Dahlias Bloom?


Quick Answer

Dahlias grown in colder climates bloom from the middle to the end of the growing season, which is mid-summer, until the first hard frost. Dahlia flowers continuously in temperate climates like its native Mexico, where it is the national flower.

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Full Answer

In climates with temperatures below 20 degrees Fahrenheit, dahlia tubers are dug up when the plant is dormant. They are stored in a cellar or garage for the winter and planted after the threat of frost is gone and the soil is warm.

The Aztecs grew dahlia tubers as a food crop and used the long, hollow stems of Dahlia imperalis to transport water.

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