Hey guys one of my Northern lights are in week 4 of flower and the leaves are turning yellow and lime green. I've been feeding it similarly to my other plants and the other ones don't have a problem whatsoever.... I've been using drops to ph and they're around 6.5. Does anyone know what this is happening? My other ones are fine... is it a bug problem right now??
Leaves are turning yellow?! HELP
- Thread starter Shinramen
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MedGrower
That hydrodude again
As @Rudra says. Looks like potassium deficiency. Reference here
How close the light is to the plant and what light you use? How are the temperatures? Sometimes K def symptoms arrive due to stressful conditions to the plant such as too much heat.
How close the light is to the plant and what light you use? How are the temperatures? Sometimes K def symptoms arrive due to stressful conditions to the plant such as too much heat.
These are how far my lights are. The back plant was fine until a week ago I saw leaves turning yellow all of a sudden. They're in week 4 of flower. My other plants are doing just fine but this one is yellowing. I have a aircooled 600hps which is dimmed at 75% right now due to too much heat. Temps are like 80's but they were fine till now. Well hopefully it doesn't ruin my crop.
MedGrower
That hydrodude again
Yeah I suspect the heat is the main culprit here. Better to finish it up keeping it as cool as you can. Lower 80's would be still alright, although optimal would be around 78. Other plants may be fine but each plant is an individual phenotype so while you may treat each plant the same way (even when they would be same strain) they still can reach somewhat differently, just as we humans do. This plant is simply put more of a diva than others there.
Good luck!
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