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. It is the primary way to obtain four exclusive themed pets, including the ultra-rare Moon Dragon, making it one of the most valuable eggs currently available in the game.
This guide goes through everything about the Moon Egg in Grow a Garden.
How to get the Moon Egg in Grow a Garden

You can obtain the Moon Egg by visiting the Harvest Moon Event Shop. There are two ways to purchase it:
The Moon Egg has only a 5% restock chance, meaning it won’t always be available whenever the shop refreshes.
How to Get Moon Coins
Moon Coins are earned by selling fruits and crops that have the Moonbeam mutation. To get this mutation, you will need to complete a ritual in which you place 10 fruits on the event pedestals to summon the Harvest Moon. This moon lasts 10 minutes, during which plants have a 50% chance to get the Moonbeam mutation.
The more Moonbeam-mutated crops you sell, the more Moon Coins you’ll receive, allowing you to buy Moon Eggs and other exclusive event items.
Every Pet in the Moon Egg

Opposum
- Hatch Chance: 55%
- Passive (Night Support): When Night-type pets finish using their abilities, their cooldown is reduced, allowing them to activate their skills again sooner.
Lunar Moth
- Hatch Chance: 35%
- Passive (Moonsong): Occasionally sings for a short duration, advancing the growth of nearby plants every second while also restoring hunger to pets within its range.
Night Horse
- Hatch Chance: 9.5%
- Passive (Selenic Steed): Occasionally sacrifices a random fruit to apply the Moonbeam mutation to other random fruits growing in your garden.
Moon Dragon
- Hatch Chance: 0.5%
- Passive (Draconis Luna): Occasionally applies the Moonlit or Moonbeam mutation to fruits based on the number of Night-type pets in your garden. Each mutated fruit also has a chance to increase the level of a random pet by one.
FAQs on Grow a Garden
How 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.
How do you earn Moon Coins?
Moon Coins are earned by selling crops with the Moonbeam mutation during the Harvest Moon event.
What is the rarest pet in the Moon Egg?
The Moon Dragon is the rarest pet, with only a 0.5% hatch chance.
Edited by Sayandeep Das
