Quote Originally Posted by stinkyattic
Upcurled leaf margins indicate acute heat stress... your temperature is high relative to a low humidity. Make sure you're watering enough- not enough to drown the plants, and be certain that the pot DOES get rather dry between waterings, and try raising your light just a little bit. Do you have a reading on the actual % relative humidity in the room?
Nah no % reading its just a simple grow in my shed. it gets enough air as its outside. i have the light on at night so the plant is kept warm during the cold nights. it only seems to upcurl when i lower the light. What is the exact height i should have the light? i water it 250ml everysecond day is that ok?