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Yellowing on leaves, affecting top of plant first ...
Momgrowsthechronicstarted grow question 4 years ago
Yellowing on leaves, affecting top of plant first and working it’s way down. She’s hardly drinking any water but still doing her best to keep growing. Not sure if this is a deficiency or what, never seen this before. Any thoughts/advice is greatly appreciated- thx and merry xmas!
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CRiSPrGrowanswered grow question 4 years ago
hey there Mom, sorry i'm seeing this late ! so yeah the way the yellowing is starting on the serrated edges of the leafs and working it's way inwards is a magnesium deficiency symptom probably due to the heavy light schedule. You kinda want to dial the lights back during this stage of flower (sort of mimicking nature's shortening day) , terps and THC get zapped by the light and most of it will be produced during dark hours - so it's not a bad idea to give more dark hours. What else helps is giving pH 6 water instead of 6.5, the soil will buffer it to 6.5 anyway and the lower pH helps with the micro nutrients. Hope this helps ! 🚀
Fruitgroweranswered grow question 4 years ago
Is it plant d you are talking about? I think its a potassium defiency, for some reason the plant cannot find potassium from the soil, could be incorrect pH, bad drainage, over watering or just a dodgy seed. Try increasing pk on this one plant, it's strange because all your other plants are gorgeous!
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Chayton_elegantbuds420answered grow question 4 years ago
I guess it's a to short on calcium or magnesium. maybe it's a good idea to add some Calmag.
also it's complete normal the plant will start coloring how fatter you go in to flowering.
Good luck
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