Thanks, Deb. Glad I took the class in calligraphy at Adult Education 40 years ago! Writing on smooth stones is much easier than any other stones I've tried.
I really like your reasoning behind the use of the driftwood. Anything that helps jog our memories is good. I take photos as I divide plants and mark them with the date.
It really is a good winter hobby and only requires the stones and the pen! On some I added the year I bought them and a code for the company. Once the plants are well established I did not continue with that aspect.
How coincidental! I just found another Japanese iris photo, 'Greywoods Social Butterfly', and I did put a piece of driftwood next to it so I'd remember to check it.