Every once and a while a fan leave might decide to turn upside down so the underside of the leave is now facing the light. Anyone know why this happens?
Couple of different reasons it could be happening.
a.) a fan blowing on it
b.) streching towards the light... is it one on the corner of your garden? If you buy a $20 light meter you can tell how many lumens each plant is receiving.
would really worry about it, just put her back the way she belongs...
Would just move the fan a bit further away from the plants. I personally keep it close enough so that the plants shake a bit as it promotes healthy strong stems but some people keep em back further.