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Flowering month : August
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Bulb planting time : Spring planting

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Plants

Results found: 86

Dahlia merckii

Dahlia merckii

From £5.99

View options

approx 10 seeds	£5.99
9cm pot	£8.99
3 × 9cm pots	£19.99
1 × tuber	£6.99

Antique peach dahlia collection

Antique peach dahlia collection

From £30.45

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1 × collection \| 5 tubers	£30.45
2 + 1 FREE collections \| 15 tubers	£60.90

Award-winning dahlia collection for pots

Award-winning dahlia collection for pots

From £17.75

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1 × collection \| 3 tubers	£17.75
2 + 1 FREE collections \| 9 tubers	£35.50

Bees and butterflies dahlia collection

Bees & butterflies dahlia collection

From £23.95

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1 × collection \| 4 tubers	£23.95
2 + 1 FREE collections \| 12 tubers	£47.90

Berry dahlia collection

Berry dahlia collection

From £29.75

View options

1 × collection \| 5 tubers	£29.75
2 + 1 FREE collections \| 15 tubers	£59.50

Bruised dahlia collection

Bruised dahlia collection

From £16.99

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1 × collection \| 3 tubers	£16.99
2 + 1 FREE collections \| 9 tubers	£33.98

Burnt orange dahlia collection

Burnt orange dahlia collection

From £15.99

View options

1 × collection \| 3 tubers	£15.99
2 + 1 FREE collections \| 9 tubers	£31.98

Burnt sugar dahlia collection

Burnt sugar dahlia collection

From £18.95

View options

1 × collection \| 3 tubers	£18.95
2 + 1 FREE collections \| 9 tubers	£37.90

Candyfloss dahlia collection

Candyfloss dahlia collection

From £23.95

View options

1 × collection \| 4 tubers	£23.95
2 + 1 FREE collections \| 12 tubers	£47.90

Chocolate orange dahlia collection

Chocolate orange dahlia collection

From £17.75

View options

1 × collection \| 3 tubers	£17.75
2 + 1 FREE collections \| 9 tubers	£35.50

Chocolate orange pollinator dahlia collection

Chocolate orange pollinator dahlia collection

From £17.99

View options

1 × collection \| 3 tubers	£17.99
2 + 1 FREE collections \| 9 tubers	£35.98

Coffee and cream 5 varieties dahlia collection

Coffee & cream 5 varieties dahlia collection

From £29.95

View options

1 × collection \| 5 tubers	£29.95
2 + 1 FREE collections \| 15 tubers	£59.90

Coffee and cream dahlia collection

Coffee & cream dahlia collection

From £23.95

View options

1 × collection \| 4 tubers	£23.95
2 + 1 FREE collections \| 12 tubers	£47.90

Cutting garden dahlia collection

Cutting garden dahlia collection

From £28.95

View options

1 × collection \| 5 tubers	£28.95
2 + 1 FREE collections \| 15 tubers	£57.90

Deep reds dahlia collection

Deep reds dahlia collection

From £17.95

View options

1 × collection \| 3 tubers	£17.95
2 + 1 FREE collections \| 9 tubers	£35.90

Dinner plates dahlia collection

Dinner plates dahlia collection

From £17.25

View options

1 × collection \| 3 tubers	£17.25
2 + 1 FREE collections \| 9 tubers	£34.50

Jewel garden dahlia collection

Jewel garden dahlia collection

From £23.75

View options

1 × collection \| 4 tubers	£23.75
2 + 1 FREE collections \| 12 tubers	£47.50

John's pollinator 5 varieties dahlia collection

John's pollinator 5 varieties dahlia collection

From £28.45

View options

1 × collection \| 5 tubers	£28.45
2 + 1 FREE collections \| 15 tubers	£56.90

John's pollinator dahlia collection

John's pollinator dahlia collection

From £17.75

View options

1 × collection \| 3 tubers	£17.75
2 + 1 FREE collections \| 9 tubers	£35.50

Last days of summer dahlia collection

Last days of summer dahlia collection

From £23.95

View options

1 × collection \| 4 tubers	£23.95
2 + 1 FREE collections \| 12 tubers	£47.90

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© RHS Enterprises Limited 2026
Registered in England & Wales No. 01211648. | VAT No. GB461532757 | Registered Office: 80 Vincent Square, London, SW1P 2PE.

All sales help fund the charitable work of the RHS.

© RHS Enterprises Limited 2026
Registered in England & Wales No. 01211648. | VAT No. GB461532757 | Registered Office: 80 Vincent Square, London, SW1P 2PE.

All sales help fund the charitable work of the RHS.