What could be digging in my dirt?
I have about 10 AV plants and over the past 6 mo. have noticed that dirt is displaced onto the table below. At first it was one plant--less than a tablespoon was displaced. Later, in a different room, dirt from another AV plant was displaced--about 1/4 cup or more. At first I thought it might be a mouse, but have ruled that out. Now I'm noticing 3 or 4 AV plants have dirt that is on the table below. It happens within 3-4 days of my cleaning up the dirt. I have transplanted some with new dirt, but it still happens. Plant looks healthy and I have not seen any sign of bugs. This is more of a curiosity for me. Any ideas what it could be? Oh, I have several plants in my solarium to choose from, but it only happens to the AV plants.