If you log into Roblox: Grow A Garden after the event is already live, you won't receive the Chicken Zombie. As such, the only way to currently get this pet is by trading.

Roblox Grow A Garden has many things you can do, including apparently getting a chicken...who is also a zombie. Go figure.

Place one of the biggest memes of a generation on your own patch of land by learning how to get the Grow a Garden Chicken Jockey pet.

Grow a Garden is always changing with new events, mutations, and weather being added to the Roblox experience on a regular basis. With these changes comes new questions, so we've created some how ...