Similar to the Zen Aura event, this happens once per hour, applying the Corrupt Mutation to fruit in your garden. You can then give that fruit to the new Kitsune NPC.

Every 20 or so minutes, the Corrupted Kitsune will fire out energy orbs at 9 different plants in your garden. Each one hit has a 20% chance to gain Corrupt Chakra.

Mutations are a fun part of Roblox's Grow A Garden that give you special plants. Here's a quick guide on the different types and how to get them.