Raising individual plants emersed

I had this tiny lil anubias in my tank, where it was doing fine, but there just wasn't a good place for it to be. Since I wanted to admire it, I decided to test out how well these self-watering planters might work for emersed plants. I keep a piece of plastic wrap over the top, with holes cut in it. The results? Very very slow, but healthy growth. In the months I've had it in the planter, it's gotten 3 new leaves and a couple roots. It seemed to have no issues adjusting to being out of the water, and every other emersed situation I've had ended up with mold, except this one. I check the water once a week, and then forget about it for another week. Haven't had to add water to it in over a month.

I'm now trying some marselia in a similar setup, but that one hasn't been doing as well, which is odd since marselia is normally a weed for me. I don't mind a bit.