You are correct @haulin, the location isn't an optimal position for sustained sunlight all day. For legal and security reasons this grow is being done in stealth and some trade-offs had to be made. These plants receive at least 6 hours of direct sunlight a day right now and were receiving more than that during the veg months.

I believe that the treeline providing shaded periods throughout the day actually saved my entire crop this year. It was brutal for heat and a complete lack of rain. If it weren't for some of the shade I'm sure my crop wouldn't be alive today.

I had also read that using a treeline to provide shade can help plants start flowering a little earlier in a northern climate.