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L3410 - DIANTHUS GRATIANOPOLITANUS, CHEDDAR PINK
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'Grandiflorus'
Pink and rose shades, amt-forming, wintergreen, first year flowering.
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Perennial
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| Familiy, Origin: | |
Caryophyllaceae, Europe
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| Sitelocation: | |
Full sun - partial shade
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| Garden Height: | |
20 cm
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7,87 inch
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| Natural flowertime: | |
May - July
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| Crop Time: | |
Plug crop: 6 weeks; Green pots: 6-8 weeks; Flowering pots: 14-16 weeks, annual production is possible; Flowering pots: 9-12 months, including wintering and vernalization
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| Sell Period: | |
non-blooming plants March-October, blooming plants March-August
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| Seed Form: | |
Raw Seed
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| Seed Count: | |
667 K/g
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| Sowing Time: | |
January-February for flowering in pots from May onwards; July-August for flowering in pots the following year
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| Sowing Method: | |
3-5 seeds per plug, can be sown directly in final pot
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| Germination: | |
7-14 days at 20-22 °C, in media with low soluble salt levels and pH: 5.5-5.8. Cover seed lightly with vermiculite after sowing. Requires light for germination. 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. 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 up to 100-130 ppm.
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| Growing On: | |
4-6 weeks after sowing transplant 3-5 plants into a pack or pot (8-15 cm).
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| Media: | |
Use a well-drained, growing perennial substrate with 0-15 % clay, 0-15 % parts (e.g. wood fibres, bark) 1-1,5 kg/m³ complete balanced fertilizer, 1-2 kg/m³ slow release fertilizer (3-9 months), iron-chelate, micronutrients, pH: 5.5-5.8.
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| Photoperiod / Light: | |
Day length neutral plant. In winter and spring supplemental lighting combined with high temperatures at 15-18 °C are recommended.
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| Temperature: | |
Grow at 10-18 °C or outdoors. In winter indoors frost free at 3-5 °C. In spring the plants start to grow for 7-10 weeks at 15-18 °C. Cold temperatures under natural condition for flowering May-June will increase the cultivation time. For flowering temperature need to be 15 °C. A chilling period (vernalization) is not required.
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| Fertilization: | |
Low fertilization levels are required. Fertilize the crop weekly with 100-130 ppm nitrogen (at 1 kg/m³ slow release fertilizer in substrate), using alternating a complete balanced fertilizer and a calcium nitrate fertilizer (N: K2O-ratio: 1:1,5). Avoid high ammonium and high nitrogen levels.
The roots are very sensitive to high ammonium levels. Don't fertilize after mid September. In spring fertilize with 130-150 ppm nitrogen of a complete balanced fertilizer. 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. The roots are sensitive to high salt levels in substrates, too. Avoid high fertilizer concentrations, it is advisable to fertilize several times with low concentrations weekly.
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| Cultural Hints: | |
Dry, light and airy cultivation. For cultivation allow for the pots to dry thoroughly between irrigations. Don't produce too close, to avoid fungi infection.
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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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