IIEI Professional Herbalist Course Year 1 Spring Term 2022 – Lesson 11 Please sign up for the course before starting the lesson. IIEI Professional Herbalist Course Year 1 Spring Term 2022 - Lesson 10 IIEI Professional Herbalist Course Year 1 Spring Term 2022 - Lesson 12 Back to: Professional Herbalist Course Year 1: Spring Term 2022