Leave edges curling

is it normal for new leaves to curl up. I have recently planted a cutting in a 15lt pot its been on 18/6 for 6 days and the new leaves thats forming are curling, getting a bit worried as i've allready killed 1

Its not normal, cant say why. More details would help.

Do you mean the leave tips are curling or the hole leave?Mine are doing the same too.i read up on it and its most likely over watering.

or high heat

do you mean curl up as in up or down