Choose one feature instead of filling every gap
Most living rooms need one clear planting feature. A window corner, sofa end or space between furniture and wall can use height to connect low furniture with the architecture. Other plants should support that hierarchy rather than giving every empty corner equal visual weight.
After setting the feature, check seated views. Planting may soften a media wall or window edge, but it should not interrupt the screen, artwork or conversation between people.
Make planting part of the furniture composition
A plant should have a clear relationship to nearby furniture or an architectural edge. A planter can create a height pair with a side table or provide a soft transition between sofa and curtain. A position far from every object often looks temporary.
Small plants suit close viewing positions. Large plants need a quieter background. Species and planters do not have to match exactly, but color, material or leaf shape should provide at least one continuous idea.
Treat care as circulation design
Watering, cleaning leaves and turning a plant all require access. Avoid heavy planters that require furniture to be moved every time they are serviced. Keep foliage from resting permanently against curtains and walls. In homes with children or pets, check plant safety and planter stability as part of the same layout decision.
Review the result from the entrance, primary seat and adjacent room. If the plants create depth from all three without blocking activity, the layout is likely to remain useful beyond the initial photograph.