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yellowing tips

nastygenetics
nastygeneticsstarted grow question 5 hours ago
what could be causing this, its only on new growth on multiple plants
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Week 4
Leaves. Color - Yellow
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Green_claws
Green_clawsanswered grow question 4 hours ago
Over fed...the mixture of too much light and to much nutes result in this tip burning more the nutes but the lights play a role.. I would raise the light slightly and no more feed. Just water for next feed or 2 or et's say the next 7 days..
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All_our_small_plants
All_our_small_plantsanswered grow question 4 hours ago
Hi, wenn es Stickstoff Mangel wäre dann würden es alte Blätter zu erst betreffen. Da es sich um einen mobilen Nährstoff handelt, können Pflanzen ihre Stickstoffspeicher dorthin verlagern, wo das Element am meisten benötigt wird nämlich zu neuen, jüngeren Trieben. Bei einem Mangel entziehen die Pflanzen den älteren Blättern Stickstoff, sodass diese nicht mehr ausreichende Mengen davon zur Verfügung haben, um im erforderlichen Umfang Chlorophyllmoleküle zu bilden, was ein gelbes Erscheinungsbild zur Folge hat. Hingegen folgende Mängel führen zu gelben Blattspitzen bei jungen Blättern -Kalium-Mangel: Führt zu verbrannten Blattspitzen und gelblichen Rändern. -Magnesium-Mangel: Zuerst Vergilbung der Blätter, dann braune Flecken. -Eisen-Mangel: Junge Blätter werden zuerst gelb Hier sind folgende Nährstoffe die bei überdosis gelbe Blätter verursachen. -Kalium-Überschuss: Kann ebenfalls gelbe Blattspitzen verursachen. -Phosphor-Überschuss: Kann zu verbrannten Blattspitzen und gelben Rändern führen. -Stickstoff kann das auch aber dann wären die Blätter sehr dunkel grün.
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BudMunchies
BudMunchiesanswered grow question 5 hours ago
The yellowing tips on this cannabis plant are a pretty common sign of nutrient burn, which happens when the plant is getting more nutrients than it needs. It’s usually caused by a high EC/PPM in the feeding solution. If this is the case, backing off on the nutrient strength slightly should help. Another possibility is light stress—if the grow light is too intense or too close, the leaves can start showing tip burn. If this plant is near the top of the canopy and closest to the light, raising the fixture or dimming it slightly might be worth trying. It’s also good to consider pH issues. If the root zone is too far out of the ideal range (around 5.8-6.2 for coco or hydro, 6.2-6.8 for soil), certain nutrients might not be absorbed properly, leading to similar symptoms. Less likely, but still worth keeping an eye on, is potassium deficiency, which can also cause tip burn. However, with a solid nutrient schedule, this usually isn’t the first suspect. - Check nutrient levels (EC/PPM) and consider lowering if they’re high. - If possible, check light distance/intensity and adjust if needed. - Measure pH to make sure the plant is in the right range. - Watch for changes—if the yellowing worsens or spreads, reassess potassium or other deficiencies. It’s a mild case right now, so small tweaks should get things back on track!
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