Dahlia 'Blue Wish' (Decorative)

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1 tuber
£4.89 £2.93
£2.93 each
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3 tubers
£13.39 £8.03
£2.68 each
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Our "Bloom or Bust" Promise

Decorative dahlias are prized for their long flowering season, sturdy stems and generously petalled blooms, which keep summer borders colourful right through to autumn.

Dahlia 'Blue Wish' produces fully double blooms in white flushed with soft lilac, creating a cool, luminous effect that works beautifully in both elegant borders and cut flower arrangements.

The flowers sit on sturdy stems above bushy foliage and bloom steadily from midsummer until the first frosts, making this a reliable choice for long-season colour.

Plant in a sunny, sheltered position after frost risk has passed, using fertile, well-drained soil enriched with compost. Regular picking and deadheading will encourage more flowers.

In colder areas, lift and store the tubers after the first frost, or mulch and protect them well if left in the ground in very mild conditions.

Botanical name Dahlia 'Blue Wish'
Flower colour White with soft lilac tips
Tuber size Grade II
Established height 100–120 cm
Established spread 60 cm
Plant spacing 3–4 per m²
Leaf colour Green
Habit Upright, bushy
Life cycle Tender perennial
Flowering period July–October
Hardiness Half hardy
Suitable for Borders, cut flowers

Where to Plant:

Choose a sunny, sheltered position with fertile, moisture-retentive but well-drained soil. Dahlias thrive in warmth and perform best where they receive plenty of light and good air movement.

How to Plant:

Start tubers under cover in spring or plant out once frosts have passed. Set the crown just below the soil surface, spacing plants well so stems have room to develop. Add support early for taller varieties and improve soil with compost before planting.

Aftercare:

Water regularly in dry spells and feed through the growing season to support repeat flowering. Deadhead often to keep new buds coming, and lift tubers after the first frost in colder areas for frost-free winter storage.

Planting and Flowering Calendar

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Key Features

Packed in paper

Packed peat-free

Great for Shade

Good for cutting

Dahlia 'Blue Wish' (Decorative) - Harding & Bloom

Dahlia 'Blue Wish' (Decorative)

£4.89 £2.93
£4.89 £2.93

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Kind Words from Our Gardeners

Arrived quickly and well-packaged. Planted them in some pots on the patio and they all came up. Look beautiful. Thank you!

Careane Wallace

Oxfordshire, UK

The bulbs arrived beautifully packaged and you could just tell they were excellent quality. We had the most wonderful display of daffodils this spring on our patio. Simply stunning. Will definitely be ordering again

David P

Kent, UK

I ordered the mixed hyacinth collection and the scent in my garden this April was absolutely heavenly. Every single bulb produced a strong, beautiful flower and the colours were stunning together. A fantastic purchase, I'll be back for more next year!

Eleanor R

Somerset