Well didn't we actually name the dirt after the planet?

Literally dirt. "tierra"

well, you can try to plant seeds in gods' asses if you found any but it's only in dirt that it will grow and bear fruit :P dirt is actually valuable the same way oxygen and water are.

only in the english language, for example in german talking countries we say "earth" to "dirt"

Isn't Terra the Roman god of the earth though?
Many languages call the earth something similar

Terra is actually like one of the first Titans and is way more powerful than all of the gods combined. Also it's Gaea in Greek for the Percy Jackson fans.