Dahlia merckii
merck dahlia
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.
Dahlia merckii is a towering beauty, which will provide long-lasting colour towards the back of a mixed border without becoming overpowering.
Dahlia merckii is a towering beauty, which will provide long-lasting colour towards the back of a mixed border without becoming overpowering.
How to care for Dahlia merckii:
Gradually acclimatise before planting out, after all risk of frost has passed, at 12-18in (30-45cm) apart. Pinch out growing tips to encourage bushy plants, and stake if needed. Water freely in dry periods. Lift and store tubers in autumn to replant, or use as a source of cuttings, in spring.
Sowing instructions:
Sow from late winter onwards in fine, seed compost 6mm (¼in) deep. Keep in a greenhouse or on a sunny windowsill above 65°F (18°C) until germination, which usually takes between 7 and 10 days. Ensure soil is kept moist but not wet, and when large enough to handle, prick out and transplant to trays or individual pots, and move to cooler conditions.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
2.5m
Eventual spread:
0.9m
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)
-
This bulb dies back after flowering each year and enters a period of rest ahead of regrowth the following season.
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Humans/Pets: Ornamental bulbs - not to be eaten
9cm pot
£8.99
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3 × 9cm pots
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6 × 9cm pots
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1 × tuber
£6.99
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approx 10 seeds
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2 litre pot
£17.99
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2 + 1 FREE 2 litre pots
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