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What could it be? Nutrient deficiency?
Schnahackenstarted grow question 7mo ago
What could it be? Nutrient deficiency?
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Leaves. Color - Dark-purple
Feeding. Deficiences
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Hologramanswered grow question 7mo ago
Thats just a lil bit of rust
rust-colored spots on marijuana leaves indicate a fungal infection or a deficiency in magnesium or calcium. Nutrient burn is also a possible culprit. i dont think its a fungus, those you can rub off..
mayb its a lock out, she had enough for now i think.
flush her with just water so it wont get worse
good luck
Leromeanswered grow question 7mo ago
Your mandarin plant is highly deficient in potassium btw (leaves yellowing from the outside with brown spots)
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Leromeanswered grow question 7mo ago
CalMag deficiency and slight deficiency in flowering nutrients. (potassium and phosphorus)
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Organomananswered grow question 7mo ago
Calcium deficiency.
Definitely not "rust" or due to cool night temps.
Absolutely no need to "flush".........add a cal/mag supplement to your line up, or increase the dosage if already using a cal/mag supplement.
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LetsGrowSomeanswered grow question 7mo ago
Could be phosphorus deficient, or could just be from cooler night time temps. I've found below 70F that purple leaves can occur and it's ok/normal. Mine do this when the temp drops below 68F at night. Hasn't effected my outcome to this point on my grows and looks cool to me, so I don't worry about it.
Just my thoughts.
Best of Luck! Happy Growing!
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