loading

Dahlia 'Hollyhill Dark Beauty'

decorative dahlia

Product Image
‘Hollyhill Dark Beauty’ showcases stunning 15cm (6in) blooms in a captivating black-red hue, making it an exceptional choice for cutting and adding a striking contrast to floral arrangements or herbaceous borders. The rich and deep tones of its flowerheads not only enrich the colour spectrum but also offer structural interest owing to their neat and uniform shape.

How to care for Dahlia Hollyhill Dark Beauty:

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 over-crowded. 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.
Flowering period:
  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec
Eventual height:
1.5m
Eventual spread:
0.6m
Position:

Full sun

Rate of growth:

Fast-growing

Soil:

Moderately fertile, moist but well-drained soil, or peat-free general purpose compost

Hardiness:

Borderline hardy (will need protection in winter in colder areas)

  • InformationThis bulb dies back after flowering each year and enters a period of rest ahead of regrowth the following season.
  • InformationHumans/Pets: Ornamental bulbs - not to be eaten

Product options

Product options image
BU30003870
1 × tuber
£5.49
Delivery options (pick your preferred option at checkout)
Standard delivery Bulbs (only)£4.95
Become an RHS Member today and save 25% on your first year