Plant it to grow Golden Block. Just think how valuable this would be in real life.
Golden Block Seed price in Growtopia: sells for about 1 WL, buyers pay about 1 WL (median of 35 offers from community Discords, past 30 days). Live price chart and the latest buy and sell offers.
Recently sold at: ESAVEND, QS4Z, NI10S, VERLICASHOP, VWLAZ