Michael Henry, who co-authored Essential Natural Plasters wrote an extensive article titled At Home with Natural Plasters that was published in the current issue of Mother Earth News. He delves into a description of traditional techniques and why they are often superior to more modern wall treatments.
The article features his own recipe for a versatile plaster that can add beauty to many different types of walls. Instructions for both mixing and applying the plaster are clearly written. Rather than quoting from his article, I encourage you to go to the source and read it there. To whet your appetite, I’ll copy some of the accompanying photos (all of which are by Michael) below.