Both my MOA Yellows have very wrinkled leaves. Only the oldest leaves look smoother. None of the other habs ive grown have looked like this. Pics from a older MOA thread here do look like mine but i just have to ask. Both of mine seemed to really struggle with cooler nights and didnt perk up until we got day time highs in the mid 90F range. My other MOA on the lower patio is still struggling but its in a coco coir/perlite mix.