You suffocated them with too heavy an application of neem. Did you spray to the point of heavy runoff, or mix the concentrate too strong? Less is more with that stuff- VERY fine, light mist. Let dry. Wait a day or so. Mist again. REpeat until there is a slight gloss to the leaves. Then maintain with weekly mists. SMC leaf wash is similar, but can be applied more heavily without risk.

BTW next time you post troubleshooting pics, you gotta get better lighting on them. It's lucky your problem's symptom is SHAPE not COLOR...
stinkyattic Reviewed by stinkyattic on . unknown problem, please help!! my leaves are curling.... but not like a taco, like a ribbon, i have pics.. some facts... i have some hydro, most soil, in veg mode... the soil are in 3 gal bags, transplanted from 16oz cups 3 days ago.. when in cups they were not that happy, they were turning yellow, but the hydro was fine... then just afteri transplanted the soil ones into 3 gal bags, all my young leaves started curling under... even on the hydro...so i dont think it has anything to do with the transplanting, or Rating: 5