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Dahlia Ludwig Helfert | Semi Cactus Dahlia
Dahlia Ludwig Helfert | Semi Cactus Dahlia

Dahlia Ludwig Helfert | Semi Cactus Dahlia

SKU: BU30004366
1 × tuber
£5.99
Available to order from summer
1

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Overview

A show-stopping tuberous perennial dahlia with mid-green foliage and dark plum stems. Large, semi-cactus group blooms up to 20cm (8in) across appear from mid-summer to the first frost, with outer petals curling under to create a striking sunburst effect.

Dahlia 'Ludwig Helfert' displays warm orange tones with hints of saffron, perfect for summer and autumn borders. Strong stems support the spiky flowers, which add texture and contrast when massed or planted alongside grasses and darker foliage.

Ideal for cutting, these blooms bring vibrant colour to bouquets and arrangements. Thrives in full sun with fertile, moisture-retentive soil, and regular deadheading encourages long-lasting flowering.

Specifications

  • Position: Full sun
  • Soil: Moderately fertile, moist, but well-drained soil, or general-purpose loam-based potting compost
  • Rate of growth: Fast-growing
  • Flowering period: July to October
  • Hardiness: Borderline hardy (will need protection in winter in colder areas)

Care guide

Dahlia tubers can be planted outside after frost, or started off in pots under glass in late winter to early spring. Plant them horizontally approximately 12cm deep, making sure the ‘eyes’ are uppermost. Allow enough room between each tuber so the plants can grow and spread to their full size without being overcrowded.

While in growth, provide a high-nitrogen liquid feed each week in June, then a high-potash fertiliser each week from July to September. Stake with canes or brushwood if it becomes necessary. In mild areas, leave them in situ over winter, but protect the crown with a generous layer of dry mulch.

In colder areas, carefully lift and clean the tubers once the first frosts have blackened the foliage and allow them to dry naturally indoors. Then place the dry tubers in a shallow tray, just covered with slightly moist potting compost, sand or vermiculite and store in a frost-free place until planting out again.

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