In Grow a Garden, pets have abilities that can apply mutations, duplicate crops, increase variant chance, and more.
Players start with 3 pet equip slots, but can get up to 8 pet equip slots by trading in aged pets.
You can obtain pets by buying Pet Eggs from the Pet Shop or Event Shops and hatching them.
To hatch an egg, you must place it on an empty spot in your garden and wait for the hatching period.
This article contains a Moon Cat pet wiki in Grow a Garden, including its trading value, price, ability, chance, and more in Roblox.
Grow a Garden Moon Cat Pet Wiki

The Moon Cat in Grow a Garden is a Legendary pet that was added in update 1.07.1.
You can obtain it by purchasing it from the Twilight Shop for 100,000,000 Sheckles.
It makes fruit ~1.5x larger every ~70 seconds and has a ~6% chance that Night-type fruit stays after harvest.
The Moon Cat is used in multiple money-making strategies as it increases the size and value of crops.
Further reading
Grow a Garden Butterfly Pet Wiki