Mycorrhizal fungi form a symbiotic relationship with the roots of most plants, which extends the root network surface area. The result is the formation of a mycelial network -- a web of interconnected microscopic pathways -- for water and nutrients to travel. The mycelial network is able to extract more water and nutrients due to covering more surface area as well as being more efficient at nutrient uptake than roots alone.
The vast majority of plants, from those grown as houseplants to those raised in home or commercial gardens and farms, form with mycorrhizae. Below you'll find a non-exhaustive list of plants that form with endomycorrhizae and ectomycorrhizae, as well as the very few species deemed non-mycorrhizal. As you can see, most plants are endomycorrhizal -- about 90% of all plants.
Endomycorrhizal Plants (90% of all plants)
Mostly green, leafy plants and most commercially produced plants; shrubs and foliage plants; berries (except blueberries, cranberries, and lingonberries); nut trees (except pecan, hazelnuts, and filberts); flowers; vegetables (except Brassica and beets); cultivated grasses (except weedy grasses); fruit trees including tropical fruits; many wetland/aquatic species.
Some commercially important plant groups that benefit from ENDOmycorrhizal fungi:
Ectomycorrhizal Plants (5% of plants)
Mainly conifers and oaks -- more woody plants. Some commercially important plant groups that benefit from ECTOmycorrhizal fungi:
Non-Mycorrhizal Plants (5%)
The following plants or plant groups do not respond to ENDO- or ECTOmycorrhizal fungi:
Chances are, your plants will benefit from Big Foot Mycorrhizae.