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A0420 - ACHILLEA PTARMICA,
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'Noblessa'
bright white, fully double flowers over deep green foliage.
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TECHNICAL INFORMATION |
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| Garden Height: | |
30 cm
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11,81 inch
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| Crop Time: | |
Non-flowering plugs: 5-6 weeks; flowering pots: 6-7 weeks from potting; crop time from seed to fl ower: 11-13 weeks. Flowering pots including overwintering: 8-10 months
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| Sell Period: | |
May-September
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| Seed Form: | |
Raw seed
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| Seed Count: | |
0 K/g
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| Sowing Method: | |
Multiple sow, 2-3 seeds per plug
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| Germination: | |
10-15 days at 18-21 °C 64-70°F. Requires light to germinate. Gently tamp seeds down. Keep uniformly moist. From Stage II, reduce the temperature to 15-18 °C 59-64 °F and reduce media moisture level.
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| Growing On: | |
5-6 weeks after sowing, transplant into 12-13 cm 4.5'' pots.
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| Media: | |
Use a friable, coarse-fibered substrate with a pH of 5.8-6.5.
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| Photoperiod / Light: | |
Requires long days (> 12 hours of light) for flower
initiation.
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| Temperature: | |
13-15 °C 55-59 °F, start ventilating at 20 °C 68 °F. Plants may be overwintered in house at 3-5 °C 37-41 °F or in the field. For outdoor overwintering,
cover with a non-woven cloth.
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| Fertilization: | |
Requires high nutrient levels.
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| Cultural Hints: | |
Roots are sensitive to waterlogging.
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* Germination Stages (from seed to finished young plant)
| Stage I: | Starts with the radicle breaking through the testa. The roots are touching the medium. Ends with fully developed cotyledons. |
| Stage II: | Starts from fully developed cotyledons. Ends with the fully developed true leaf or true leaf pair. |
| Stage III: | Starts from the fully developed true leaf or true leaf pair and ends with 80% of the young plants being marketable. |
| Stage IV: | All young plants are ready for sale and in the process of being hardened off. This stage lasts about 7 days. |
Hint
The cultural recommendations are based on results from trials conducted under Central European conditions. Different conditions in other parts of the world may lead to deviations in results achieved.
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