Hello @LittleBanshee,
Congrats on another Book of Shadows - how exciting! 
I second Georgia - if you feel called to Elemental Magick, jump in! 
It is a wonderful area of the Craft to explore that can be tied into what you already known about apothecary and green witchcraft. Since you already have a solid foundation there, perhaps the Earth Element might be a good starting part into your elemental exploration? 
If that resonates, Iād recommend the Earth Element Invocation on the site - it is a great place to begin to connect with this element. There was also just an Earth Elemental Challenge with some great spells and wisdom shared by fellow coven mates. Feel free to take a look if you feel called to do so!
Good luck and blessed studies 