Assess actual daylight at the leaves because nearby buildings, hemisphere, latitude, and season matter more than the compass label alone. Keep the group close enough to receive useful light and observe new growth. A deeply shaded window may still require appropriate supplemental lighting.
The message behind the grouping
Meaning, with a little thought.
Fine, upright, rounded, and flowering forms create variety within a restrained palette. The meaning is attentive use of the conditions available, not a claim that these plants need no light.