Wtf?
Organomananswered grow question 2y ago
Slight burning from a soil mix that is too rich with nutrients and some mechanical damage to the leaf tips from hitting the soil or edge of the pot at night time when the leaves hang downwards.
Both issues are nothing to be worried over, the plants will grow just fine, however, there is no need to feed them for another 3 weeks at least.
At this age, in good soil, there is no way they could be suffering from any sort of deficiency.
Remember too, no plant will ever have 100% perfect leaves, 100% of the time.
If you are new to growing, visit the Mandala Seeds website and read their "grow guides", it contains a lot of excellent information designed for European growers..........you will learn a huge amount of knowledge!
Springtimeanswered grow question 2y ago
Edit: on the RQS website, there is a well-illustrated overview of what could be causing various leaf changes. Not sure if I'm allowed to link it here. I'll just do it anyway.
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Springtimeanswered grow question 2y ago
Looks a bit like too much fertilizing because of the discolored leaf tips. However, there are also orange spots on one of the leaves. I think nutrient burn usually starts at the tips.
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Ultravioletanswered grow question 2y ago
To much salt buildup in , little particles of salt are being uptaken and deposited in furthest reaches (least dmg) of the leaves, tips.
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