Fringed dahlias finished with finely split petals
Fimbriata dahlias
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Fimbriata dahlias
Fimbriata dahlias are defined by the finely divided ends of their petals, creating full flowers with a distinctly fringed outline. Some blooms are softly feathered at the tips, while others develop a much more pronounced, almost shredded texture as they open. Combined with the generous flower size and broad colour range found across the group, this makes fringed dahlias particularly useful when you want more texture through a late-summer border without relying on colour alone.
The plants build steadily from spring-planted fimbriata dahlia tubers, gathering height before flowering from midsummer onwards. Choose a sunny position in fertile, well-drained soil and support taller varieties before the flower heads become heavy. Cutting stems and removing faded blooms encourages further buds to develop, extending the display towards the first frosts. Their strong stems and intricate flower form also give fringed dahlias a clear role in the cutting garden, where the split petal tips can be appreciated at closer range.
Mix fimbriata dahlia varieties among simpler flower shapes and the difference becomes immediately apparent. Rounded pompons provide contrast, grasses soften the planting around them and single-flowered dahlias allow the more detailed blooms room to register. Colours range from pale creams and pinks to orange, red, purple and bicoloured forms, so the group can move easily between restrained and more expressive planting schemes. In colder UK gardens, lift and store the fringed dahlia tubers frost free over winter, then plant them again once spring conditions are suitable.
