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Dahlia Black Jack

From £4.99
SAVE WITH A COLLECTION
SAVE £11 - SHOP NOWDahlia Unusual Dinner Plate Collection C
Supplied as Top-grade Tubers
CODE A720
Supplied as Top-grade Tubers
CODE A8214
Top-grade Tubers
Delivery within 28 days
Download our handy planting instructions PDF
  • Suitable for planting in sunny and partially shaded locations
  • Suitable for growing in pots and containers
  • Excellent for cut flowers
  • Attracts butterflies
  • Summer flowering time
  • GREEN foliage colour
  • PURPLE flowering Colour

Availability to buy and flowering time

J F M A M J J A S O N D
Available to Buy Flowering Time

Product Description

Dahlia Black Jack is a fabulous Dinner Plate Dahlia which produces dark purple flowers that are near black in appearance. This semi-cactus variety is a superb addition to any garden border or patio pot display and the showstopping blooms make them an ideal choice for cut flowers for the vase. Height 80-100cm and spread 50cm. Large dinner sized plate flowers appear once fully bloomed. Flowers June to September. First grade tubers supplied.

This product is part of our new premium Dahlia range. Bred for their quality, providing you with a premium summer display.


For more varieties, please browse our full range of Dahlias.

Plant Size

Mature Height 85 cm
Mature Spread 50 cm
Plant Spacing 45 cm
Annual Growth 85 cm

Planting Notes

Planting Plant at approx 10cm deep.
Soil Type Well drained/light soil

Growing at a glance…

Dahlia tubers can be planted outdoors, 10cm deep in fertile well-drained soil in spring when the frost has disappeared. They prefer to be in a sunny location and spaced at approximately 45cm apart. In areas where there is extreme cold, dig up dahlias and store in potting compost over the winter. Apply a high potash fertiliser every few weeks in the summer to help growth. Dead head when necessary.

For further information on growing and caring for dahlias, please refer to our guide on How To Grow Dahlias.

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