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L6730 - DRABA LASIOCARPA, WHITLOW GRASS
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'Draba lasiocarpa (aizoon)'
Dwarf green cushion covered with yellow flowers, wintergreen.
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Perennial
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| Familiy, Origin: | |
Brassicaceae, East-Alps, Carpates, Hungary, Balkan
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| Sitelocation: | |
Full sun
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| Garden Height: | |
8 cm
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3,15 inch
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| Natural flowertime: | |
March - May
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| Crop Time: | |
Plug crop: 4-6 weeks; Green pots: 24-28 weeks; Flowering pots: 8-10 months, including vernalization
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| Sell Period: | |
September-November
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| Seed Form: | |
Raw Seed
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| Seed Count: | |
3333 K/g
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| Sowing Time: | |
March-August
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| Sowing Method: | |
3-5 seeds per plug
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| Germination: | |
14-21 days at 18-22 °C in media with very low soluble salt levels and pH: 5.0-7.0. Cover seed lightly with vermiculite after sowing. Keep soil slightly moist, 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 16-18 °C. Do not let soluble salt level rise above 0,5 EC. Start fertilization at 50 ppm nitrogen in a well balanced formula. During Stage III and Stage IV fertilization levels can be increased to 100 ppm.
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| Growing On: | |
6-8 weeks after sowing transplant 3-5 plants into a pot (6-13 cm).
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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),1-1,5 kg/m³ complete balanced fertilizer, 0-2 kg/m³ slow release fertilizer (3-9 months), iron-chelate, micronutrients, pH: 5.0-7.0.
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| Photoperiod / Light: | |
Day length neutral plants. In winter and early spring additional assimilation light is recommended in combination with warm cultivation temperatures of 15-18 °C. A cultivation in cold greenhouse or field at natural conditions is possible. In this case the flowering is in March-May.
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| Temperature: | |
Grow at 12-15 °C or outdoors. In winter indoors frost free at 3-5 °C or outdoors. Outdoor fleece cover needed. In early spring (from CW 51 earliest) the plants start to grow at 15-18 °C. Cold temperatures at 8-15 °C will increase the cultivation time. A chilling period (vernalization) for flower initiation is required.
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| Fertilization: | |
Low fertilization levels are required. Fertilize the crop weekly with 80-100 ppm nitrogen (at 0 kg/m³ slow release fertilizer in substrate), using alternate a calcium nitrate fertilizer and 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 complete balanced fertilizer.
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| Cultural Hints: | |
Planting in well-drained, calcareous soils and sunny location. The roots are sensitive to wet substrates.
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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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