The Amber Mutation was added to Grow a Garden as part of the Prehistoric Update and offers a x10 multiplier on crops.
Players can obtain the Amber Mutation in two ways: by using a Mutation Spray Amber or hatching a Raptor from a Dinosaur Egg.
To craft a Mutation Spray Amber, players need specific materials and must visit the crafting station next to the Prehistoric Quest stand.
Alternatively, players can opt to hatch a Raptor by exchanging current pets for a Dinosaur Egg, increasing the chances of obtaining the Amber Mutation on crops by 2.5%.