Use the rule of 3 - use odd numbered grouping.
Create a sense of Movement
Asymmetry is Visually Appealing
Balanced Composition of objects create Natural Harmony
Use placement of plants to guide the viewers eye into an indoor garden nature setting
Utilize a windowsill. Place plants in sunny windows.
Incorporate your indoor garden on shelving with grow lights
Use some plants as decor - placed on kitchen countertops.
Place decorative objects among your grouped plants.