Double Swamp Tallgrass is the Betweenlands' equivalent of vanilla Double Tallgrass, found in Patchy Islands biomes and in Underground Oases. When harvested with a Sickle, it drops Swamp Tallgrass Blades, which can then be ground into Ground Swamp Tallgrass.
- Beta 2.0.0: Can now be grown and farmed with composted blocks.
- Can now be found in Underground Oases.
- Beta 1.0.0: Introduced.