You searched for: “geophily
geophily (s) (noun) (no pl)
1. The property of living underground: Geophily can be exemplified by burrowing animals or by a number of insects.
2. The feature of flowers and fruit growing at ground level or below the surface of the earth: In reading about geophilily, Jane found out that the peanut was the best example for the situation of fruit growing in the ground.