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K0202 - DAHLIA VARIABILIS, DAHLIA
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'Garden Pride'
Uniform dwarf habit, early flowering, semi-double flowers in nice colors. Suitable for production along with bedding plants. Crop time: 8-9 weeks.
The yellow coated seed is dust-free for easy machine sowing and seed placement inspection.
** Benary Specialties **
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Annual
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| Familiy, Origin: | |
Asteraceae, Mountains of Mexico and Guatemala
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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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| Crop Time: | |
8-9 weeks
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| Sell Period: | |
May-June
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| Seed Form: | |
Raw & Coated
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| Seed Count: | |
123 K/g
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| Sowing Method: | |
2-3 seeds per plug, can be sown directly into final pot
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| Germination: | |
3-5 days at 24-26 °C, in media with low soluble salt levels and pH: 5.5-6.0. Before sowing treat substrate with fungicide. Cover seed with vermiculite, sand or substrate after sowing. Keep soil slightly moist but not wet. Germination at temperatures of 18-26 °C is possible. Cold temperatures increase the germination time to 10-14 days.
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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. Temperatures below 10 °C will cause flower initiation and will inhibit the shoot branching inhibit. Do not let soluble salt level rise above 0,75 EC. Start fertilization at 50-75 ppm nitrogen in a well balanced formula. During Stage III and Stage IV fertilization levels can be increased to 100-150 ppm.
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| Growing On: | |
3-4 weeks after sowing transplant 2-3 plants into a pack or pot (9-14 cm).
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| Media: | |
Use a well-drained, growing substrate with 20-30 % clay, 1-2 kg/m³ complete balanced fertilizer, 1-2 kg/m³ slow release fertilizer (3-6 months), iron-chelate, micronutrients, pH: 5.5-6.0.
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| Photoperiod / Light: | |
Long day plant. Keep light levels high. For the growth and flowering Dahlia need long day (14-15 h) and high light intensity (30-40 klx). Night interruption (2-4 h) is possible. In winter and spring assimilation light is effective. Short day (less 12 h) combined with cool temperatures (less 18 °C) promotes tuber formation.
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| Temperature: | |
Grow at 15-18 °C or outdoors. For selling it is recommended to harden the plants at temperatures of 12-13 °C. Cultivate flowering plants not below 13 °C. Dahlia plants do not tolerate frost. Temperatures above 21 °C combined with long day of 16 h cause flowers to dry in and temperatures above 25 °C inhibit the flower initiation.
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| Fertilization: | |
Moderate fertilization levels are required. Fertilize the crop weekly with 100-150 ppm nitrogen, using a complete balanced fertilizer. Avoid high ammonium and high nitrogen levels. Prevent magnesium deficiency by applying magnesium sulphate (0,05 %) 1-2 times and in case of iron deficiency apply iron-chelate for 1-2 times.
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| Cultural Hints: | |
Dahlia does not tolerate over watering and should be watered carefully. Drought stress and wetness cause chlorosis of the leaves. Avoid that the plant roots grow into the soil underground. Remove spent flowers to encourage additional flowers.
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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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