Help: Central Plant for Shade Container Arrangement?
I have placed two new planters on my front porch. There 's not much direct sunlight within the porch: what little direct lighting there is consists of late-afternoon sun. However, there is lots of indirect sunlight. I've placed three Lysimachia Nummularia "Goldie"/"Creeping Jenny" in each planter. I've read that it's fine in shade and has a tendency to cascade. I'd like suggestions for a central plant, and would prefer something easy to find in local (Oklahoma City) nurseries, dark-green, cheap, and durable (I am a relative beginner with plants, and have a tendency to kill them in various, although accidental, ways). Perhaps some version of Monkey Grass (Japonicus?) would do? The inner diameter of the planters is about 13".
Here are some pictures of them in place, with the "Creeping Jenny":
Thanks for your help.