It's the medicinal herb garden that is located on Abbey Strand. It was designed to look like the historical gardens of Holyrood Abbey. It's a more recent addition to the Learning Center that was set up for public visitation by the Royal Collection Trust. It really gives the area more color and meaning.
We passed through it on the way to the palace and the start of the Royal Mile from Calton Hill. It turned out to be a beautiful autumn day full of colorful falling leaves. The Physic Garden itself was so much nicer in person than in pictures. Although, I think the best time to visit is in the springtime.
What's interesting is that this whole area in front of the palace gate was once a sanctuary for those in debt (to keep them from being imprisoned). Now, it's more of a sanctuary to city dwellers that heals the body & soul through nature. read more