you are the lord of your domain.. who cares what the knaves think ...

added water.. will make the stumps rot faster...

you might want to drill some holes near the bottom for drainage .. if the stump still holds water..

otherwise .. ka-nock yourself out.. sounds like a good idea to me..

post pix when they are in their prime..

ken

Yes stumps are attractive to termites, but there's not much you can do about that. The way I figure, better the termites have something to eat out there than be attracted to my house.

Last year I watched a Pileated woodpecker chip away at one of my rotting stumps in the back garden and feast on the termites for a good 10 minutes.

As for planting into the stump, I have no idea if plants will grow well under such conditions. Gardening is sometimes an experiment and that sounds like a good one!

You're right, ken. Who cares what the knaves think? Both stumps drain very fast. I am going to try it. Like terrene said, it would be a good experiment. I may plant some annuals to see if they will grow before I invest in perennials. And, yes, I will post photos.