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Dahlia Black Jack | Decorative Dahlia
Dahlia Black Jack | Decorative Dahlia

Dahlia Black Jack | Decorative Dahlia

SKU: BU30003098
1 × tuber
£5.99 £4.79
Available to order from summer
3 × tubers
£14.00 £11.20 £3.73 each
Available to order from summer
1

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Overview

This fabulous, show-stopping, semi-cactus variety Dahlia produces dark purple, dinner-plate sized blooms that are near black in appearance. Contrasting with mid-green foliage, 'Black Jack' is a superb addition to any garden border, patio pot display, or a sumptuous choice for a cut flower vase.

Specifications

  • Position: full sun
  • Soil: fertile, humus-rich soil
  • Rate of growth: average
  • Flowering period: July to September
  • Hardiness: half hardy (may need winter protection)
  • Bulb size: I
  • Toxicity: Ornamental bulbs should not be eaten by humans or pets

Eventual height & spread

Eventual height and spread

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.

Warning

Humans/Pets: Ornamental bulbs - not to be eaten

How your order will arrive

Packaging
Bulbs arrive in bags placed in small cardboard boxes. Material may vary.

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About Primrose

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