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So I have 6 plants right now and one of them is giving me some problems. The plant overall looks light green but very healthy, other than my large fan leaves are turning yellow and the veins are turning brown. Some of the big fan leaves are totally brown and turned upwards. I will have pictures up later when my camera charges.

Overall light green growth with yellowing fans is usually N deficiency. But yeah, a picture speaks volumes. Also what are your growing conditions? Indoor/Outdoor? Type of soil, nutrients used, water used?

Im growing indoor with soil, using flora nova, a seaweed fert that adds K, and organicare calplex and humega. Fox farm ocean forest soil, water with ph of 7.

bump bump bump

nitrogen anyone?

Well, given that you are using great soil, and are adding proper nutrients, I would question a Nitrogen Def. I would say more likely a "lockout" due to salt build ups. I would recommend you flush her out with some distilled water and start back up on nutrient regiment about 4-5 days after flush.

What kind of water are u using. If you are using straight tap water that could do that as well. Chlorine is a a bad thing for plants, and can do all sort of things to plants.

Peace, Love, and Happiness

How far into flower are you? I am 2 weeks in and have all kinds of large, lower fan leaves yellowing and shriveling up to crunchy bits. I was told this was normal, although I was trying to stay green and healthy until 6-7 weeks. I was told that because the overall plant was healthy except for lower fan leaves, it is just a natural process of the plants taking out of their stores to put energy into the buds, which kinda makes sense because you have these huge leaves in the shade of the canopy that are just sitting there full of nutrients.

I'm using tap water but I let it sit for a day so that the chlorine will evaporate, and I have only been feeding nutes every few days.