Growing questions
The questions growers ask most, with an honest answer and the gear that goes with it. Can’t find yours? Ask below.
- Climate Do I need a climate controller, or is a thermo-hygrometer enough? A thermo-hygrometer is enough to start with. A controller is worth it once you want fans, humidifier and heater to react on their own. Read the answer →
- Climate How do I heat a grow tent in winter? Use a small heater with a thermostat, insulate the space, and run the lights during the coldest hours. Read the answer →
- Climate How do I keep a grow tent cool in summer? Run the lights at night, dim them, and use a bigger fan with straight ducting. Read the answer →
- Climate How do I raise the humidity in my grow tent? Run a humidifier, slow the exhaust fan down, and keep the tent sealed except for the intakes. Read the answer →
- Climate How do I lower the humidity in my grow tent? Pull more air through the tent, use a dehumidifier if needed, and don't overwater. Read the answer →
- Climate What is VPD and how do I use it in a grow tent? VPD (vapour pressure deficit) combines temperature and humidity into one number that tells you how strongly the air pulls water out of the plants. Read the answer →
- Climate What is the ideal humidity in a grow tent at each stage? About 65 to 80% for seedlings and cuttings, 50 to 70% in growth, and 40 to 50% in flowering, a bit lower toward the end. Read the answer →
- Climate What is the ideal temperature in a grow tent? About 22 to 28 °C with the lights on, and no more than about 5 °C cooler when they're off. Read the answer →
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