Plant it to grow Wheat. You're not in Kansas anymore... but if you were, it'd pretty much look like this.
Wheat Seed price in Growtopia: sells for about 65/WL (median of 14 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: IMUPMALL, EEPSON, LIJCA, POLKASHI, HOWPY