Peace, I lived in the Willits area a few years back . As soon as I moved in {January 1} I built and planted a greenhouse full.Things went real well and I really surprized some locals that you could grow in a GH that time of year. The seedlings did not flower but I did sex very early. Our girls were 6 foot tall at planting time.
I think if yours start flowering at the size you have them they should finish well for you ... I love to experiment also. Good luck with your grow ! Waterdog