Dahlia Plants

These dahlias boast simple yet captivating open flowers in a spectrum of bright hues, not only pleasing to the eye but also attracting vital pollinating insects. Beyond the blossoms, the allure extends to dahlias with dark leaves and stems, casting an attractive charm even before the flowers grace the scene. To maintain a continuous display, deadhead the fading flowers. Opt for dwarf dahlia varieties as charming container plants or as edging along borders. For a stunning late-summer display, pair dark-leaved dahlias with ornamental grasses and rudbeckias, or create a tropical ambience by combining them with plants like cannas. 

  • Wide variety of premium Dahlia Plants.
  • Perfect for garden beds, borders & containers.
  • Contact customer services six days a week, including bank holidays.

    Dahlia Plants
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    Dahlia Plants FAQs

    Take a look at some of the frequently asked questions we receive from those looking to buy Dahlia Plants in the UK. You can contact our Customer Service Team or browse our general FAQs for further advice.

    When to plant Dahlia Plants

    Plant Dahlia plants in the spring after the last frost has passed, providing a warm and frost-free environment for optimal growth. This timing ensures that the soil has warmed up sufficiently, allowing the tubers to establish themselves. Dahlia plants thrive in well-drained soil and require full sunlight, so choose a location that meets these conditions. With proper care and the right timing, you can enjoy a spectacular display of colourful blooms that lasts until the onset of frost in the fall.

    How to Plant Dahlia Plants

    To plant Dahlia plants, begin by selecting a well-drained location with full sunlight. Plant the tubers in the spring after the last frost, burying them at a depth of about 4 to 6 inches. Ensure proper spacing between tubers to allow for adequate growth. Water thoroughly after planting and maintain consistent moisture throughout the growing season. Stake taller varieties for support as they mature. With the right soil conditions, sunlight, and care, your Dahlia plants will flourish, providing a stunning and colourful addition to your garden.

    How long do Dahlia Plants take to grow

    The growth timeline for Dahlia plants varies, but generally, you can expect to see significant growth within a few weeks of planting. Blooms typically appear in mid-to-late summer and continue until the first frost. With proper care, including regular watering, fertilising, and deadheading spent flowers, Dahlia plants can reach their full height and produce abundant blooms within a single growing season. Enjoy the beauty of these vibrant flowers as they enhance your garden landscape.

    Why Grow Dahlia Plants?

    Cultivating Dahlia plants is a rewarding choice for numerous reasons. These plants offer a spectacular burst of colour, gracing your garden with vibrant blooms that last until the first frost. Beyond their visual appeal, Dahlias attract essential pollinating insects, contributing to biodiversity. The versatility of Dahlia plants makes them suitable for various settings – from containers to border edging. With dark leaves and stems, they bring aesthetic charm even before flowering. Easy to grow and maintain, Dahlias are an excellent choice for both experienced and novice gardeners, adding a touch of elegance and natural beauty to your outdoor space.

    Where can you grow Dahlia Plants?

    Dahlia plants are remarkably versatile and can thrive in a variety of settings. Ideal for gardens, borders, and even containers, Dahlias can be grown in both outdoor and indoor spaces. Ensure well-drained soil and ample sunlight for optimal growth. Whether enhancing your garden landscape, adding colour to borders, or bringing life to patio containers, Dahlias adapt well to different environments. From small spaces to expansive gardens, Dahlias offer a stunning display of vibrant blooms, making them a suitable choice for virtually any location that receives adequate sunlight and provides proper growing conditions.

    Why Buy Dahlia Plants from Marshalls?

    • Our customers are supported by a team of experts dedicated to providing valuable advice. You can also use our growing guides, backed by 70 years of experience, to get the best results from your Dahlia Plants and other plants.
    • You can contact us six days a week – including bank holidays – to discuss our products and services or to chat about all things gardening.
    • We pride ourselves on offering fast delivery on all orders, with any 'in stock' plants and seeds sent out within three working days. We're green-fingered in more ways than one, too, thanks to our fully recyclable packaging.
    • We won second place at the 2022 Great British Growing Awards for Best Online Retailer.
    • Thousands of five-star reviews on Feefo and a 100% satisfaction guarantee on all our products show that we're a company you can trust.