Minecraft wiki entry for Crop_farming, associated text: Crop growth is prompted by random ticks—the same random events that, for example, causes Zombified Piglins to appear in Nether portals. For a given block, a random update occurs an average of once every 68.27 seconds in Java Edition, or once every 204.8 seconds in Bedrock Edition. However, the delay can vary widely, and it is rare, but possible for plants to gain a stage the moment after planting or grow two stages a moment apart.