Discover step-by-step tips for filling your balcony planter so your plants thrive, not just survive. Learn which materials keep roots healthy, how to balance drainage and water retention, and how to tailor the setup to your favorite flowers or herbs. Avoid common balcony mistakes with smart hacks for airflow and weight management. Even small spaces can overflow with green if you get this foundation right. Balcony gardening isn't complicated—here’s how to do it the easy, effective way.