Richters ProGrowers Info

Richters ProGrowers Info

  Rosemary (Rosmarinus officinalis )
Market Products:   (leaf);   (leaf);   (herb);     Market size: Most commercial product is from wildcrafted sources. Cultivated acreage is 200 hectares (North America); world acreage unknown   Prospects: prices stable, volume up
Culture Seed density: 1000 seeds/gram   Exposure: full sun   Soil: light, well-drained; pH 6.0-7.5   Crop duration: 10-20 years
      Sowing rate: 1.5-3 kg/ha (direct), 0.2-0.6kg/ha (indirect).   Planting: direct sowing not recommended because seeds are slow to germinate and seedlings are slow to establish. Sow in seedflats 20 weeks before field spring planting. Germination can be enhanced by exposing seedflat to 24-27°C for 1 week and then lower to 18°C for germination. Where rosemary is not hardy growers dig up plants and overwinter in cool greenhouses. Named cultivars must be grown from cuttings; seed only available for standard species.   Field spacing: 90cm between rows x 25-50cm within rows.   Yield: fresh herb 2000kg/ha (years 2-20).   Pests: no data   Diseases: root rot.   Buyers want: dried leaf minimum volatile oil 1.2%, maximum foreign matter 10%, maximum woody stems 2%, maximum ash 7%.  
  Sowing rate: 10-15g/1000 plants.   Planting: sow in seedflats 22 weeks before sale in 10cm pots.   Seeds to finished plugs: 12 weeks.   Plugs to saleable plants: 10 weeks.   Pests: whitefly, scale, mealybug   Diseases: powdery mildew.  
– Dried Production     – Fresh Production     – Oil Production     – Potted Plant Production    

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