Richters ProGrowers Info

Richters ProGrowers Info

  Feverfew (Tanacetum parthenium)
Market Products:   (herb);     Market size: 1,300 hectares (world), 160 ha (North America)   Prospects: prices stable, volume down
Culture Seed density: 7,500 seeds/gram   Exposure: full sun   Soil: fertile, well-drained, dry soil   Crop duration: 1-2 years
  Sowing rate: 1-1.5 kg/ha (direct); 0.5g/1000plants.   Planting: plugs preferred over direct sowing because seeds very small. Sow plugs 8 weeks before spring planting date. Don't allow to go to seed to avoid winterkill. Frequent fertilization with low nitrogen fertilizer is beneficial. Long days trigger flowering. Short lived perennial; some growers treat as annual.   Field spacing: 20-90cm between rows x 10-20cm within rows.   Yield: 300-5000kg/ha (years 1-2).   Pests: spider mite   Diseases: few problems.   Buyers want: minimum 0.4-0.8% parthenolide.  
  Sowing rate: 0.5g/1000plants.   Planting: sow 14-16 weeks before sales in flats or plug trays.   Seeds to finished plugs: 8 weeks.   Plugs to saleable plants: 6-8 weeks.   Pests: aphid, whitefly, spider mite   Diseases: few problems.  
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