Herb Farmer, Author and medicinal herb expert Isabelle Shipard has written the following books:
How Can I Use Herbs in My Daily Life?
How Can I Grow And Use Sprouts As A Living Food?
How Can I Be Prepared With Self Sufficiency & Survival Foods?
They are all excellent educational books and she also has a substantial Herb Farm in Queensland With an online business
The Importance of Vitamin C Includes also Advice from Dr. Lady Cliento (a specialist with mothers and children) The excerpt from the book How can I Use Herbs is about the high vitamin C content of the Acerola Cherry which is native to the Caribbean, fast growing and 2-5m and bushy.