Well folding along the central vein is common, and twisting too; it's when the EDGES just sort of roll inwards that you have heat stress- keep your temps in check and don't worry so much!
oh and welcome to canncom!
stinkyattic Reviewed by stinkyattic on . any advice? Hi all. i'm a first time grower, with 2 fem orange bud from dutch passion. they're 4 weeks from seed, approx 4" tall and 2' from a 250w MH cool tube. babys seem to be growing ok, nice and green and getting bushy, if not very tall. the trouble is all the leaves begin to fold along the center when they reach 4 or 5 days old. the branches all reach upwards towards the light and lots of the leaves twist also. they are clearly very different from the pics of healthy plants i've seen. (yes they Rating: 5