IIEI Professional Herbalist Course Year 1 Spring Term 2022 – Lesson 10 Please sign up for the course before starting the lesson. IIEI Professional Herbalist Course Year 1 Spring Term 2022 - Lesson 9 IIEI Professional Herbalist Course Year 1 Spring Term 2022 - Lesson 11 Back to: Professional Herbalist Course Year 1: Spring Term 2022