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D8571 - CALENDULA OFFICINALIS, ENGLISH MARIGOLD, POT MARIGOLD
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'Gitana Yellow'
fully double vibrant flowers abound on this species, vibrant yellow flower color with a brown eye
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Annual
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| Familiy, Origin: | |
Asteraceae, South Europe
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| Sitelocation: | |
Sun
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| Garden Height: | |
30 cm
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11,81 inch
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| Crop Time: | |
9-10 weeks
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| Sell Period: | |
May-June
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| Seed Form: | |
Raw
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| Seed Count: | |
100 K/g
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| Sowing Method: | |
1-3 seeds per plug
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| Germination: | |
5-10 days at 21° C (70 °F); in media with low soluble salt levels and pH 5.8-6.5. Cover seed with vermiculite, sand or substrate 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. Reduce the temperature to 16-18 °C (61-64 °F). 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 up to 100-150 ppm.
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| Growing On: | |
2-4 weeks after the sowing transplant one plant into pots 10cm (4'').
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| Media: | |
Use a well-drained, growing substrate with 10-30 % clay, 0-15 % parts (e.g. bark, sand, perlite), 1-1,5 kg /m³, complete balanced fertilizer. Iron-chelate, micronutrients, pH 5.8-6.5.
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| Photoperiod / Light: | |
Optional long day plant. Increasing day length and light intensity will stimulate the flower initiation.
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| Temperature: | |
Grow at 10-15°C (50-59 °F). Calendula does not grow at temperatures below 8°C (46 °F). A cool cultivation in early spring in polytunnel or cold greenhouse is possible.
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| Fertilization: | |
High fertilization levels are required. Fertilize the crop weekly with 100-200 ppm nitrogen (at 2 kg/m³ slow release fertilizer in substrate), using a complete balanced fertilizer. Avoid high ammonium and high nitrogen levels. High nitrogen levels cause delay in flower initiation and smooth stems. Prevent magnesium deficiency by applying magnesium sulphate (0,025%) 1-2 times and in case of iron deficiency apply Fe-Chelate for 1-2 times.
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| Cut Flowers: | |
Cut flowers stems can be harvested, when 100 % of the flowers are open, otherwise the head may collapse. Remove the bottom leafs and put the stems in water immediately. Vase life: 6-12 days. Cold storage for 2-3 day standing in water is possible.
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| Cultural Hints: | |
Dry, light and airy cultivation. After planting treat substrate and soil with fungicide against Botrytis and Fusarium.
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All colors
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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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