HEAT/COLD DAMAGE AND SIGNS

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Hi, also ich habe einmal 3 Lüfter damit die Luft gut im Zelt zirkulieren kann, das hilft schonmal, dann natürliche den Inline fan der die Wärme aus de Zelt ziehen kann. Unter den Töpfen habe ich für die Kälte eine Wärme Decke kann mann in fast jeden growshop bestellen. Und dann im Sommer wenns richtig heiß wird auch eine kleine Klimaanlage diese hilft bei extremer Hitze. So tuhe ich das handhaben, aber fast alles kann mann schon mit nem guten Inline Fan und Lüfter bezwingen. Was auch noch interessant ist wenn deine Lampen dimmbar sind stelle si nur so hoch wie auch nötig damit sie nicht so warm werden.

Hey Growmie, When it comes to heat damage, look for wilting, leaf curling (especially upwards), dry or crispy edges, light green or yellowing tops, and stunted growth. In more severe cases, leaves might look almost “burnt.” To deal with it, increase airflow with a fan, raise your grow lights if they're too close, and make sure temps stay in the 70–80°F (21–27°C) range. You can also lightly mist the air around the plant (not directly on it if it's under lights), and consider running your light cycle during cooler parts of the day. With cold damage, signs include drooping leaves, slow or stalled growth, dark purple or blue tints on stems or leaves (not from genetics), and leaves that feel soft or soggy. If seedlings get too cold, their roots struggle to function, which can cause a wet/dry cycle imbalance. To fix it, raise temps to at least 70°F, especially at night. Use a heating mat if needed (especially for the root zone), and avoid overwatering, cold roots, plus too much water is a bad combo. In both cases, give the plant time to bounce back once conditions are corrected. Early seedlings are surprisingly resilient if you catch stress signs fast and adjust your environment accordingly.

Control the climate better. Stop whatever is causing the damage - that's all you can do. No "first aid" kit to buy, lol.

ive never really noticed any damage from the cold but slow growth. heat damage will give plants crispy leaves and necrotic spots woth twisting and curling closest to the light normally.

What type of damage? Medium play a large role into temperature tolerance, as does humidity, varietal, and so on.

So I actually recently has some heat stress with my grow room getting over 100 degrees F, the leaves drooped a bit, the lowers were a lighter shade of green than the tops and there was some rippling in the leaves. If you don’t have the means to buy a cooling system for the set up you have, you may want to put your set up in a new cooler location if possible, of freeze wet rags flat in a freezer and then put them one as a time hanging by 2 corners behind a fan- just watch your humidity if you go about that method.