Still using small containers? Here’s something most growers overlook. Soil volume plays a major role in root development, soil biology, and long-term plant health. Larger pots support a more active soil food web. This gives your plants the space they need to grow stronger and more resilient from the ground up. On the other hand, smaller containers dry out faster, require more inputs, and limit the activity of beneficial microbes. If it’s an option, aim for containers that hold between 5 and 30 gallons of soil per plant. Your roots will have the room they need to thrive, and your plants will show it.