Phototropism: Why Cannabis Bends Toward Light
Phototropism is why cannabis leans toward light. Learn how auxin bends a shoot, why plants tilt in a tent and how to keep their new growth straight.
When to Replace Grow Lights for Cannabis
Grow lights fade before they fail. Learn how long HPS lamps and LEDs last, how to spot dimming and when to replace grow lights for cannabis.
How Much Electricity Do Grow Lights Use
Grow light electricity use comes down to watts, hours and your power rate. Learn the formula, see worked examples and find what drives the cost.
Grow Tent Condensation: Why Walls Drip at Lights Off
Grow tent condensation forms when moist air cools at lights off and hits its dew point. See why walls drip and how humidity, airflow and heat help.
Under Canopy Lighting for Cannabis: Is It Worth It?
Under canopy lighting sends light into the lower part of cannabis plants. See what research found, when it is worth it and where to put the light bars.
Insulating a Grow Tent or Grow Room
Insulating a grow tent or grow room cuts heat loss in cold spaces. See how heat escapes, which materials help, what to avoid and where to begin.
Power Outage During Flowering: What to Do
A power outage during flowering often means a long night, not a lost crop. See what to check when power returns and how to guard the dark period.
Measuring Leaf Temperature With an Infrared Thermometer
An infrared thermometer reads leaf temperature at a distance to help you judge heat, VPD and dew risk. Learn how to aim it for reliable readings.
Basement Grow Rooms: Moisture and Cold
A basement grow room fights damp walls, cold floors and summer condensation. See where the moisture comes from and how to keep it in check.