Namek

Namek is a planet with blue grass, green waters, and a lime sky. It is the home planet of a wise and powerful species called the Namekian, which only survives off of water. Namek used to have alot of trees, but then the Great Storm hit, causing a massive decline in plant population.

Coltrois and the group once ventured to Namek in search of their ancient Dragon Balls (similar to Gohan and co.) but realized Sovereign was after them, too. After an encounter with the villains, Spore became dominant, and had Sovereign killed. He then killed Noxious, and the DC Fighters narrowly escaped. Spore's new host had become Buu, and it seemed he was completely unstoppable.

Frieza also had his eyes set on it long before anyone in DC had, but he was killed there by Goku and chose to never return to Namek.