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M6211 - GOMPHRENA HAAGEANA,
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TECHNICAL INFORMATION |
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| Life Cycle: | |
Annual
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| Familiy, Origin: | |
Amaranthaceae, Tropic of America
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| Sitelocation: | |
Full sun
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| Garden Height: | |
50 cm
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19,69 inch
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| Crop Time: | |
Plug crop: 4-6 weeks Cut flower production: G. globosa: 8-10 weeks, depending on season G. haageana: 12-16 weeks, depending on season
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| Seed Form: | |
Raw Seed
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| Seed Count: | |
0 K/g
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| Sowing Method: | |
1-2 seeds per plug, sowing directly into pots is possible
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| Germination: | |
G. globosa: 10-14 days at 22-24 °C, G. haageana: 15-21 days at 22-24 °C
in media with low soluble salt levels and pH: 5.5-5.8. Required light for germination. Cover seed lightly with vermiculite after sowing. Consistent moisture of the substrate and high humidity above 95 % for fast, uniform germination. 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 up to 100-150 ppm.
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| Growing On: | |
6-8 weeks after germination transplant 1 plant into a pack or pot (8-12 cm).
Plant the cut flowers in 20-25 x 25 cm space (16-20 plants per m²).
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| Media: | |
Use a well-drained, growing substrate with 15-30 % clay, 0-20 % parts
(e.g. coconut fibres, perlite), 1-1,5 kg/m³ complete balanced fertilizer,
0-2 kg/m³ slow release fertilizer (3 months), iron-chelate, micronutrients,
pH: 5.5-5.8.
Field: well-drained, sandy loamy soils.
Standard fertilization: 60-80 g/m² of a slow release fertilizer.
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| Temperature: | |
Grow at 20-24 °C during daytime and at 15 °C during night or outdoors. Avoid temperatures below 10 °C. Protect the young plants outdoors against frost. Gomphrena does not tolerate frost.
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| Fertilization: | |
Moderate-high fertilization levels are required. Fertilize the crop weekly with 100-150 ppm nitrogen (at 2 kg/m³ slow release fertilizer in substrate), using complete balanced fertilizer. Avoid high ammonium and high nitrogen levels. Take care of the phosphate level in substrate.
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| Cultural Hints: | |
Gomphrena needs a relative high amounts of water during season, but for cultivation allow for the pots/soils to dry thoroughly betweens irrigations. Avoid a high relative humidity in greenhouse and overhead irrigations during the flowering.
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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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