Open-centred dahlias with a light, natural form
Single-flowered dahlias
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Single-flowered dahlias
Single-flowered dahlias have a simpler structure than fully double forms, with one clear ring of petals around an open central disc. That open shape gives the flowers a lighter presence in the border and makes their centres easy for bees and other pollinators to reach. Colours range from soft pinks and creams to deeper reds, oranges and near-black tones, often set against fresh green or darker foliage.
Their strength lies in how easily they sit among other plants. Single dahlias work naturally through mixed borders, alongside grasses and perennials where their open flower shape can soften denser planting and introduce a clearer sense of space. Plant the tubers in spring after the risk of frost has passed, choosing a sunny position in fertile, well-drained soil. Deadheading will keep fresh buds developing from midsummer into autumn, while taller varieties may benefit from support as growth gathers pace.
Use single-flowered dahlias where you want movement and contrast rather than heavy blocks of bloom. Repeating one variety through a border creates continuity, while combining several colours keeps the planting loose and seasonal. Their open centres also make them a useful choice for pollinator-friendly gardens, particularly later in summer when many varieties are still flowering strongly. In colder UK gardens, lift and store the single-flowered dahlia tubers frost free over winter, ready to plant again the following spring.
