There are several ways to preserve the goodness of calendula blossoms. Drying the blossoms is the easiest way, but dried flowers will preserve the goodness of calendula for only a year. By preserving it in other ways, you can extend this shelf life
Vertical Succulent Garden by floragrubb: 20 x 20" panels with 45 slanted cells to support planats and soil when mounted vertically. The unit in the picture is made of 6 panels, each $79. Now, if I could only figure out how to make the panels myself..