Is your soil full of microbes?
When you soil is filled with all the different microbes it can possibly have then your plants have access to everything they could ever need. This presence of nutrients increases the plants health, color, flowers, pollen, and even the smell. While this study doesn't look at all the microbes it does give you just a hint at what microbes are capable of. https://phys.org/news/2024-09-presence-bacteria-soil-pollinators.html