Hey man, good luck with your greenhouse grow. Get yourself a VPD chart, it will help you immensely. I grew in a greenhouse last year. It went well till the weather changed to very wet. RH was getting above 80% at night, below 30% during the day. Depending on the size of your greenhouse, leave room to get round the plant or at least be able to turn her so you can properly inspect all her stems, leaves and bud sites. I can only speak from my experience, at the end of the day she is getting the best light, its a hardy plant. Check my questions list for a VPD chart, happy growing