Okay, not exactly. But because many of BTD’s projects require rehabilitation of depleted, urban soils, mycorrhizal inoculants are a sustainable and inexpensive component of our soil amendment specifications. Mycorrhizae are fungi that form symbiotic relationships with plants, stimulating their root growth while promoting the uptake of particular nutrients in exchange for others. Individual plant species often have unique partnerships with individual mycorrhiza species. Because of this selectivity, we make sure to specify inoculant products that contain a large variety of mycorrhizae. There are several products on the market that cost pennies per plant and are easy for commercial landscape contractors to apply during planting.