Og Karen

A modest 1.2m x 1.2m tent with a 600W LED or equivalent and good ventilation suits a 4–6 plant rotation; maintain 20–26°C lights-on and stable RH around 40–50% in flowering.

Keep air moving with oscillating fans, lower humidity before vies to 40% during late flowering and remove dense lower foliage to improve airflow around buds.

Switch to 12/12 after plants reach a size where you can support the desired number of main colas; for Og Karen this is often after 4–6 weeks of veg.

Use a balanced vegetative feed then shift to a bloom formula higher in phosphorus and potassium, with careful control of nitrogen in the final weeks.

A 7–10 day flush is common to reduce residual nutrients, but monitor trichome maturity to time harvest precisely.

Yes, but in places with cool northern summers you should choose a sheltered, south-facing location and consider greenhouse or polytunnel protection.

Watch for spider mites and aphids; use insecticidal soaps, beneficial insects or neem oil early, and isolate affected plants promptly.

Increase dehumidification capacity, insulate the grow room against nightly temperature drops and use timed extraction to maintain stable environmental conditions.

Supplemental CO2 can boost yields in tightly controlled, high-light setups but offers limited benefit in small amateur tents without strict environmental stability.

Use a 30–60x loupe to check trichomes; harvest when most are cloudy with some amber for balanced effects, or wait longer for a heavier stone.