Richters ProGrowers Info
Richters ProGrowers Info |
Calendula
(C. officinalis) |
Market
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Products: (flower); (flower);
Market size: 880 hectares (world), 200 ha (North America)
Prospects: prices stable, volume stable
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Culture |
Seed density: 150 seeds/gram
Exposure: full sun
Soil: well-drained; can tolerate poor soil with low nitrogen.
Crop duration: 1 year
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Sowing rate: 3-9kg/ha (direct), 1kg/ha (indirect in plugs).
Planting: sow direct in field in spring or autumn; or sow in plugs 4-6 weeks before field planting. Seeds need light to germinate; cover seeds lightly or press in soil only.
Field spacing: 20-70cm between rows x 10-30cm within rows.
Yield: dry flower 1-2,000kg/ha, fresh flower 6-9,000kg/ha (year 1).
Pests: blister-beetle, cabbage-looper, caterpillar, leafhopper
Diseases: leaf spot, aster-yellows.
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Sowing rate: 15g/1000plants.
Planting: sow in plugs or direct in pots 10-12 weeks before sale.
Seeds to finished plugs: 4-6 weeks.
Plugs to saleable plants: 6 weeks.
Pests: whitefly, aphid, thrip, mealybug
Diseases: powdery mildew.
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Dried Production
 
Fresh Production
Oil Production
Potted Plant Production
Back to ProGrower Herb List
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