Grow a Garden Brontosaurus is a Mythical-tier pet introduced in the Prehistoric Update. Let’s find out how to get it.
Grow a Garden recently introduced a host of new pets in the game as part of the ongoing Prehistoric Event Update (July 5 – August 14, 2025). Pets are not just cosmetic companions but also provide buffs to your crops and enhance your gardening experience. One of the new pets in the game is the Brontosaurus. It is a Mythical-tier pet. Let’s find out how to get it.

Grow a Garden Brontosaurus Guide
To obtain a Brontosaurus, you need to hatch a Dinosaur Egg or use the DNA Converter. Here are the two primary methods to acquire a Dinosaur Egg:
The first method is trading pets with NPC Graham (DNA Converter). Visit Graham at the Dinosaur Egg Stand and equip any non-dinosaur pet. Interact with Graham by pressing “E” and select “Take this Pet” to trade the pet. Wait 60 minutes for the machine to process. You’ll receive either a Dinosaur Egg or, if you trade a rarer pet, a chance at a direct dinosaur pet.
Note: Once you submit the pet, it will be removed from your inventory.
The second method is completing Dino Quests. Visit Blaire at the Prehistoric Quest Stand (located opposite Graham). Interact with Blaire by pressing “E” and select “Show me the Quest.” You have to complete one of the three daily quests. Only the middle slot quest rewards a Dinosaur Egg. you may claim your egg after completing the quest.

Note:Since the Brontosaurus is a Mythical pet, it only has a 1% chance of hatching from a Dinosaur Egg. You may need to be prepared to repeat the methods multiple times.
Brontosaurus: Passive Ability
The Brontosaurus is a Mythical pet with a unique passive ability called Giant Incubator:
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