Karlee, I have tried tea from somewhat green leaves. I save the cut leaves from defoliation, let them dry slowly in a zip-lock bag (slightly open to the air), grind them up, and extract the resins with the dry ice. When I get enough leaves, and combine them with the 'lumber' from the last grow, I'm going to make a large batch of tea.
Remember Karlee, to bake the tea in the oven in an aluminum foil packet(or wrapped in a piece of parchment paper) at 230 Deg. F for two hours.
Years ago, a friend of mine would make tea by boiling the stems for several hours and straining it thru cheese cloth. He made the tea for his Aunt who was undergoing chemotherapy treatments for cancer.
Good luck with the tea and keep me posted on how it works out.