Cactus Dahlia tubers

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Cactus Dahlias have fully double flower heads. The petals are strongly recurved for more than a third of their length which gives them their spiked appearance. This unusual appearance and the fabulous range of colours lends a little texture to the garden border.

Cactus Dahlias flowers range from medium to large sizes and are excellent for cutting to create stunning bouquets for your home.

 

These dahlia tubers produce bright flowers of varying sizes from small to large. They are unique in their pointed florets that spike out from the centre of the flower, giving them the name cactus dahlias. Although unlike cactus plants, these flowers wont prick you.

Ray-florets are fully recurved for more than half of their length producing a pointed tube-like petal. Rows of these florets form a fully double flower with either a straight form or slightly curved towards the centre.

Remarkable colour combinations happen within these tight formations. From yellow, to pink, to red. There are no better words than bursts of colour, explosions, or splashes. Each description conveys the energy these flowers inject into your beds. Not forgetting the vibrant cut flowers they make. 

How do you use Cactus dahlia plants in your garden?

Planning a garden is often about blending textures and shapes, not just colour. You can use cactus dahlias when you want to make an impact amongst an otherwise ordinary border. Or to break up the billowing decorative dahlias if you are planning to plant a lot of these summer must-haves.

Care for your Cactus dahlia tubers

Cactus dahlias won't require any special treatment. If it is a large flowering variety consider restricting the stems to 3-5, and if it is a smaller flower you can successfully grow a large plant with 7-9 stems without the flowers getting too heavy. It is always wise to support your dahlias with a mesh or stake.  

  • Support your dahlias with a mesh or stake.
  • Cactus Dahlias are known for their stunning, spiky blooms
  • Plant cactus dahlias in spring after the last frost, when the soil has warmed
  • Choose a spot with at least 6 hours of sunlight per day
  • Use well-drained and organic-rich soil
  • Dig a hole 6-8 inches deep and place the tuber horizontally with the eye pointing upwards
  • Pinch out the tops of the plants when they reach about 18 inches tall for bushy growth and more blooms
  • Replant the tubers in the next spring for continuous blooms

Popular Cactus dahlias

With so many dahlia varieties to choose from, it can be difficult to know which one is right for you. Here are some of our favourite cactus dahlias to give you some inspiration:

Why you should order your cactus dahlia tubers from Peter Nyssen

  • We are a friendly, family run business with more than 60 years experience 
  • We offer bulk prices and free delivery for orders over £100
  • We supply flower bulbs in quantities large and small, for all types of gardener from the cottage potterer through to the professional landscaper

 For guidance on how to get the best from your cactus dahlias, refer to our detailed dahlia planting guide. Browse our stunning collection of cactus dahlia tubers online today or take a look at our wider range of bulbs to plant in spring for the ultimate selection. For help and advice, call our team on 0161 747 4000.

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