I have always had the best colors in direct, all day, hot sun!
Anything less and they aren't anywhere as brilliant.

Boca Joe

I have it in shade because everything i read says you should keep it in part shade full shade. I'll move it so it will get more sun. Hopefully this will help, thanks!

Mine gets morning sun & is very bright and colorful. Down here in the south, 9b, they will burn to a crisp in all day full sun. The prettiest one I've seen in years was growing at UTMB in full shade. Tally HO!

Usually the newest leaves are the brightest in color. The older leaves fade a bit and look a little more greyish. I
grow mine in filtered shade under the canopy of huge Oaks.
The always look beautiful. If you pinch the tips it will
incourage the plant to get more bushy and sprout more new
leaves, which will in turn be brighter in color(;-)

Mine are doing great in light shade with moist soil. I started in pots in light shade. The colors were pale and they were slow to grow. I planted them in morning sun and afternoon shade but they sunburned and looked washed outand brittle. When I planted them in a moister environment, the same light shade area as before, the colors started coming out and they flourished. Now they seem very happy.YMMV.

I give mine lots of sun and regular water (4-5x/wk). It's in a spot that collects heat and looks great. It used to be in the dappled shade of a lemon tree & looked really bad. I'm on the coast, so full sun here is not the same as full sun inland.