Hemp (Cannabis sativa): Sowing, planting and harvest calendar
How do you sow hemp outdoors?
For a hemp cultivar intended for fibre or grain, plan spring sowing using recommendations suited to your region. Wait for soil that has drained and warmed sufficiently; around 12 °C at 3 cm depth is a guide to adapt to conditions. One date does not suit every climate or maturity class. Check the cultivar and seed lot’s germination quality before determining density.
Choose well-drained ground without major compaction and remove weeds. Prepare a level surface with enough fine soil for seed contact, without reducing it to dust that may crust. Match fertility to soil reserves; hemp does not automatically grow without nutrients. For common fibre or grain systems, around 1 to 2 cm sowing depth is a guide, adjusted to supplier instructions and moisture.
Distribute seeds evenly for the intended stand. Do not confuse density with universal spacing of 30 to 60 cm between plants. Fibre crops are generally much denser. Close the soil gently for seed contact. Monitor moisture without saturation, emergence, possible crusting and weed competition. Record sowing date and stand uniformity to identify areas where establishment failed.
How do you plant young hemp seedlings?
How do you monitor hemp flowering?
How is hemp harvested?
