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B6171 - ASTER ALPINUS, ALPINE DAISY
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'Dark Beauty'
Deep violet blue, 5-6 cm daisy-type flowers with yellow centers, deep violet blue petals
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Perennial
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| Familiy, Origin: | |
Asteraceae, High mountains of western Europe
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| Sitelocation: | |
Sun - partial shade
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| Garden Height: | |
30 cm
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11,81 inch
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| Flower Size: | |
5 cm
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1,97 inch
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| Natural flowertime: | |
May - June
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| Crop Time: | |
7-8 months
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| Sell Period: | |
April-October
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| Seed Form: | |
Raw
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| Seed Count: | |
769 K/g
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| Sowing Method: | |
3-5 seeds per plug
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| Germination: | |
14-20 days at 18-21 °C, in media with very low soluble salt levels and pH: 5.5-6.0. Cover seed lightly with vermiculite after sowing. Keep soil slightly moist but not wet.
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| Plug Culture: | |
From Stage II* reduce the soil moisture, but the plug should not dry out and reduce the temperature to 15-18 °C. Do not let soluble salt level rise above 0,50 EC. Start fertilization at 50 ppm nitrogen in a well balanced formula. During Stage III and Stage IV fertilization levels can be increased to 80-100 ppm.
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| Growing On: | |
4-5 weeks after sowing transplant 1 plant per plug tray (3-4 cm) and
4 weeks later transplant 1 plant into a pot (8-10 cm). Two time transplantation will support the young plant quality. For a full flowering annual transplant several plants into 1 pot.
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| Media: | |
Use a well-drained, growing perennial substrate with 0-15 % clay,
0-15 % organic parts (e.g. bark, wood fibres), 0-2 kg/m³ complete balanced fertilizer, 1-2 kg/m³ slow release fertilizer (3-9 months), iron-chelate, micronutrients, pH: 5.5-6.0.
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| Photoperiod / Light: | |
Long day plants. For flowering 5-6 weeks long days are required. Start in spring with assimilation light (14-16 h, 35-80 klx) for good plant quality.
Night interruption is possible.
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| Temperature: | |
Grow at 12-15 °C or outdoors. In winter indoors frost free at 3-5 °C or outdoors. At mid December the plants start to grow for 5-7 weeks at 15-18 °C. Cold temperatures at 7-12 °C will increase the cultivation time.
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| Fertilization: | |
Low - moderate fertilization levels are required. Fertilize the crop weekly with 80-100 ppm nitrogen (at 2 kg/m³ slow release fertilizer in substrate), using a potassium balanced fertilizer (N: K2O-ratio: 1:1,5). Avoid high ammonium and high nitrogen levels. Don't fertilize after mid September. In spring fertilize 80-100 ppm nitrogen of a potassium balanced fertilizer. Prevent magnesium deficiency by applying magnesium sulphate (0,05 %) 1-2 times and in case of iron deficiency (above pH 6.0) apply iron-chelate for 1-2 times.
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| Cultural Hints: | |
Do not cultivate the plants too wet or too dry. Check the plants for Powdery Mildew. Cut the plants for a better branching and good plant quality (this will increase the cultivation time).
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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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