The Moon Egg is a Legendary egg introduced in Grow a Garden as part of the Harvest Moon update, which went live on August 1, 2026. AdThis guide goes through everything about the Moon Egg in Grow a Garden. How to get the Moon Egg in Grow a GardenThe Moon Egg in the Moon Coin Shop (Image via Roblox)You can obtain the Moon Egg by visiting the Harvest Moon Event Shop. FAQs on Grow a GardenHow do you get the Moon Egg in Grow a Garden? You can buy the Moon Egg from the Harvest Moon Event Shop for 40 Moon Coins or 149 Robux.