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V2240 - SCABIOSA JAPONICA VAR. ALPINA, SCABIOSA
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'Ritz Rose'
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Perennial
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| Sitelocation: | |
Full sun-partial shade
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| Garden Height: | |
18 cm
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7,09 inch
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| Garden Width: | |
18 cm
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7,09 inch
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| Natural flowertime: | |
June - September
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| Crop Time: | |
14-16 weeks
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| Seed Form: | |
Raw
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| Seed Count: | |
0 K/g
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| Sowing Method: | |
1-2 seeds per plug
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| Germination: | |
Stage I: 10-12 days at 18-21 °C,
Stage II, III and IV: 16-18 °C. In media with low soluble salt levels and pH 5.8-6.5. Requires light
for germination. Cover seed lightly with vermiculite after sowing. Keep soil slightly moist but not
wet. Avoid direct sunlight by shading seeds after sowing.
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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 0,75 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: | |
5-6 weeks after germination transplant 1 plant into a pot (10-12 cm).
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| Media: | |
Use a well-drained, growing substrate with 15-30 % clay, 0-20 % parts (e.g. bark, perlite,
sand), 1,5-3 kg/m³ complete balanced fertilizer, 0-2 kg/m³ slow release fertilizer (3-9 months),
iron-chelate, micronutrients, pH 5.8-6.5.
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| Photoperiod / Light: | |
Day length neutral plant. Keep light level high, because high light levels
improve the flower initiation and the plant quality. In winter and early spring additional assimilation
light (43-65 klx) is recommended. Keep short day conditions with high light intensity during
vegetative growth for a compact plant habit and afterwards turn to long day with high light
intensity for flowering.
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| Temperature: | |
Grow at 12-15 °C or outdoors. In winter indoors frost-free at 3-5 °C or outdoors.
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| Fertilization: | |
Moderate fertilization levels are required. Fertilize the crop weekly with 130-150 ppm
nitrogen (at 2 kg/m³ slow release fertilizer in substrate), using a complete balanced fertilizer. Don't
fertilize after mid September. In spring fertilize 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 (above pH 6.0) apply iron-chelate
for 1-2 times.
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| Cultural Hints: | |
Dry, light and airy cultivation. The roots are very sensitive to wet substrate/soils.
For cultivation allow for the pots to dry thoroughly between irrigations. For early forcing in spring
supplemental lighting is required for a good plant quality.
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All colors
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* Germination Stages (from seed to finished young plant)
| Stage I: | Starts with the radicle breaking through the testa. The roots are touching the medium. Ends with fully developed cotyledons. |
| Stage II: | Starts from fully developed cotyledons. Ends with the fully developed true leaf or true leaf pair. |
| Stage III: | Starts from the fully developed true leaf or true leaf pair and ends with 80% of the young plants being marketable. |
| Stage IV: | All young plants are ready for sale and in the process of being hardened off. This stage lasts about 7 days. |
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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