2 litre pot £19.99
available to order from autumn
Quantity 1 Plus Minus
Buy Dahlia merckii dahlia: One of the hardiest dahlias

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: full sun
  • Soil: fertile, humus-rich soil
  • Rate of growth: average
  • Flowering period: July to September
  • Hardiness: hardy (borderline)

    Three inch wide single flowers in shades of pink top arching or upright flower stems from mid summer. This Mexican native is one of the hardiest forms, so may survive outside through the winter in sheltered gardens. It is a towering beauty, which will provide long-lasting colour towards the back of a mixed border without becoming overpowering.

  • Garden care: Provide a high-nitrogen liquid feed each week in June, then a high-potash fertiliser each week from July to September. Once the first frosts have blackened the foliage carefully lift and clean the tubers and allow them to dry naturally indoors. Place the dry tubers in a shallow tray, just covered with slightly moist potting compost, sand or vermiculite. Store in a frost-free place, checking frequently over the winter months.

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