Thanks for stopping by @litguru!
It's rather easy to determine with cannabis plants. The pistils are the indicator. The female plants produce them, and they are wispy white hairs, not present on the males. The males produce "ball sacks" of pollen, to inject into the females hehe ;D
This has given me an idea to create a post showing macros of the feminine parts and how to determine one from the other. A cannabis birds and bees like post! hahah ;)
Thanks for the compliment about the 3D printed pots. They are pretty sleek looking in my opinion, and I can proudly say they are one of a kind! :)
You can't make this up. Nature has a sense of humor.