On 2013-07-24, at 11:05 AM, Jane McGary <janemcgary@earthlink.net> wrote: > Regarding showing size scale in photos: …………. I photographed it with a > 6-inch/15-cm ruler, black scale on white plastic. I secured a ground > pin (heavy U-shaped wire) to the back of the ruler so I could set it > in the soil beside the plants. If one wants a grid instead of a ruler, it is possible to Xerox or laser print a grid onto a piece of clear plastic. Diane Whitehead