Plant it to grow Cave Column. Cave Dirt hooks into this like it's got Block Glue on it, so you can build seamless caverns. These are just fun pillars to hide behind in a cave!
Cave Column Seed price in Growtopia: sells for about 200/WL (median of 1 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: HUTAOBSK