Conway's Game of Life posing as a garden. New sprouts come up bright green and fade to a settled olive as they age, so colonies spread like real moss patches. Choose who lives here: three plant communities with slightly different bylaws. Draw on the soil with your pointer, paste a pattern in, and let the torus do the wrapping.

The soil is listening. b = bare, o = alive, $ = new row, ! = end. Plain .O lines work too.