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Hemp Plant Leaf

Indoor Hemp Cultivation Checklist

  1. Check Your Irrigation
    • Run clean water through irrigation lines to flush them out.  Minerals and salts can build up in lines and cause clogs over time.
    • Check/Replace emitters to ensure good flow
    • Mix Nutrients and test pH, Electrical Conductivity (EC) before irrigating.
      Typically pH should be between 5.5-6.5, EC will vary depending on vegetative or flowering cycle.
    • Check Irrigation Weekly.
  2. Proper Lighting and Cooling
    • Vegetative Cycle (5-7 weeks) Provide >16 hours light
    • Flower Cycle (8-10 weeks) Provide ~12 hours light
    • Ensure cooling pads are cleaned and running (If applicable)
    • Provide circulating air movement.  Adequate air flow helps reduce mildew growth.
      This can be done by using mounted hanging fans or internalized ventilation fans.
  3. Sanitization
    • Prepare clean media or substrate.  Reusing growing media or substrate can spread fungal and viral pathogens and other microscopic organisms or insect eggs that can survive between growing cycles.
      Options Include: Rockwool, Coco Coir, Soilless Peat Based Mix (Rockwool has to be rinsed and pH-ed prior to use)
    • Disinfect pots, tools, benches (Use dilutions of bleach, isopropyl alcohol, Virkon, or other commercially available sanitizing products.  Always follow the product label)
      Bleach is more effective against pathogens than isopropyl, Virkon is equally effective.
      Proper disinfection is important to minimize the risk of spreading pathogens and pests to new plants.
  4. Cultivation
    • Clones: Transplant into larger containers (No hardening off/acclimatization required)
    • Seeds: Sow in substrate. ( allow 2-3 days of dark and moist conditions to improve germination)
      Options: Gently Cover with thin layer of moist media or vermiculite.
    • Seedlings: Keep moist under adequate light
      Prone to drying out quickly and stretching or etiolation under inadequate light
    • Pinch/Remove tip of plant to promote lateral branching (if applicable)
    • Space plants evenly to maximize growth and  bench space
    • Monitor pests/pathogens (scout weekly)
      Yellow sticky cards can be used to measure pest populations
    • Plan Harvest and Testing Schedule