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William137 started grow question 4 years ago
Does anyone know why the eddges of my leaves are curling up on 2 of my plants, check the last picture on week 2
First grow
12 weeks
First grow William137
37 comments · 4 years ago
Week 2
Techniques. Defoliation
Stick answered grow question 4 years ago
Hi @William137! Well, heat + high relative humidity usually lead to these symptoms. Either your lamp-to-plant distance is too short, or your airflow is not good enough. Try to have a slight and continuous breeze onto your babies and maybe raise your light up since you're currently having hot temperatures. Lowering the relative humidity might help but that's not the main priority (try to control heat+airflow first). Also, since you're growing in coco, your 5.0 pH level is a bit acidic, try to stick to the optimal pH range for coco, 5.3~5.8. The first weeks are the most important ones, especially with autoflowering strains, so try to react as fast as you can, keep us up-to-date and happy growing :facepunch:
Mrs_Larimar answered grow question 4 years ago
Of course can itell you that. Your girl likes it cooler and more humid. If you can low er the Temp.your humidity will rise too. But one more ive Seen is it the correct ph.?

Its way to low... should be between 6 and 6.5 . Only in that range your girl can get all nutrients . I recommend you a good Helping site in the comments. Loook there for 1. Temperatur /humidity

2. Ph range.... happy growing
CRiSPrGrow answered grow question 4 years ago
Hey william, that's either simple heat stress (so try brining T down without pointen a fan at the plants) or some sort of root problem. try checken the roots, maybe do some root pruning or air pruning to try and make a thick root system. If you don't know about air pruning you should check out some vids man ! i hope that helps ! good luck on your grow !