Need help mates! Black leaf tips curling up. definitely no over watering.Very windy! The plant is dry every evening and drinks 2 Liters. (Feeding: Biobizz BioGrow (3ml), Bloom (2ml), Topmax (1ml),<alg-a-mic (2ml)). i had to spray the whole plant with a water rapeseed oil mix...
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Leaves. Curl up
Leaves. Color - Black or grey
Feeding. Schedule