I stirred a spoonful of fungal powder into the root ball just to revive an exhausted potting mix: three weeks later, the roots had reached where my watering can never went
A single application of mycorrhizal powder triggered explosive root growth in a struggling potted plant, reaching zones that water alone never touched. The fungi act as a microscopic extension of the root system, accessing water and nutrients in compacted soil that plant roots cannot reach independently. Here’s the research-backed guide to using this overlooked indoor gardening tool.