low humidity killing bottom leaves?

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stealth6

Active Member
Alright so i have a little T5/CFL grow in my closet right now with one sour dies plant and one master kush. the temp is always between 75-82 with the lights on but the humidity is pretty low and is always between 20-30 percent. im 5 weeks into flowering and the bottom leaves on the sours have been turning yellow, then they get crunchy and die. the kush seems to be doing just fine(knock on wood). i water about every 3-4 days with Greenleaves nutes and i use about 1/4 the recommended dosage so i dunt think its nute burn. the leaves are turning yellow now halfway up the plant and since the sours is pretty small im worried that its not going to make it at this rate :?. any help would be greatly appreciated. thanks guys
 

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ilovekasey17

ilovekasey17

Well-Known Member
stealth6 said:
Alright so i have a little T5/CFL grow in my closet right now with one sour dies plant and one master kush. the temp is always between 75-82 with the lights on but the humidity is pretty low and is always between 20-30 percent. im 5 weeks into flowering and the bottom leaves on the sours have been turning yellow, then they get crunchy and die. the kush seems to be doing just fine(knock on wood). i water about every 3-4 days with Greenleaves nutes and i use about 1/4 the recommended dosage so i dunt think its nute burn. the leaves are turning yellow now halfway up the plant and since the sours is pretty small im worried that its not going to make it at this rate :?. any help would be greatly appreciated. thanks guys
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Usually, from what I've learned, yellow isn't a sign of a humidity problem.

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Klaus von Richter

Active Member
ilovekasey17 said:
Usually, from what I've learned, yellow isn't a sign of a humidity problem.
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I was always under the impression that the later you get in flowering, and the closer to harvest, the larger fan leaves will begin to yellow as they are depleted of their nitrogen stores.

I'm by far no expert on the topic, but I hope this helps.

I'm also about 5 weeks into flowering and I too am seeing my lower leaves beginning to turn yellow. Additionally, I too am experiencing lower then normal humidity issues over the last few days. I have been looking around on the forums and in the few books I have and can't seem to find out the downside to a more arid climate in my grow room.

I know some cannabis plants have their origins in arid climates, and that cannabis is very resilient but if anyone has had any experiences with arid growing conditions I'd love to hear about it.


Klaus
 
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