So I've had the plant growing outdoors getting full direct sunlight from around noon until 7pm or so from the time I got it.
The plant continues to grow vigorously, slowly taking more and more space BUT it seems like they have reduced their height while they're growing bushier. Any of the tall ones seem to shrivel down a bit to about 5-6 inches tall. I'm not sure if it is due to the wind drying them up or too much strong direct sunlight.
I've seen they do grow in some areas with other bushy grasses so I'm not sure if anything should be changed.
Again, they seem to be dividing well and spreading but they haven't really continued their tall-ish growth.