I know where on earth some extreme sage grows and I would love to start a herb garden next to this.? I would like to ask anyone what part of the plant is...

I would like to ask anyone what part of the plant is used to form a tea and also, does anyone know how do I harvest this wild sage so that I can eventually own a great looking garden full of it. Thank you for your answers.
How do i brand a homemade spider repellant?
Answers:    Transplant a shovelful of it into your yard. When you trim the branches, tie them together and hang the bunches to dry.
Crumble the dried leaves to brew into a tisane.