"Energized plant matter has formed in the underground."
Perennial Ore is a Hardmode ore found in the Cavern layer after Plantera has been defeated, and is used to craft Perennial Bars at an Adamantite Forge or a Titanium Forge. It requires at least a Pickaxe Axe or a Drax to mine. It is also dropped by Perennial Slimes.
- In botany, "perennial" plants are plants that live for more than two years.
- Perennial Ore can be destroyed by explosives after Plantera has been defeated.
- Unlike most other ores, it is visible without the use of the Spelunker buff as each block has a faint lime green glow.