Quick Scoop: To grow a frog in a cold biome in Minecraft, breed frogs with slimeballs to get frogspawn, collect the tadpole, and raise that tadpole in a cold biome with water that won’t freeze. The tadpole grows into the green cold frog variant; if the water freezes, the tadpole dies.

What to do

  1. Find two frogs and feed each one a slimeball to make them breed.
  1. Wait for frogspawn to appear on top of a water source block with air above it.
  1. Let it hatch, then move the tadpole in a bucket if needed.
  1. Place the tadpole in a cold biome and keep the water from freezing by covering the water or adding a light source nearby.
  1. Wait for it to grow up; in a cold biome, it becomes the green frog variant.

Important details

  • Frogs naturally spawn as temperate in swamps and warm in mangrove swamps, so cold frogs are usually made by raising tadpoles in a cold biome.
  • Tadpoles need water; they cannot survive on dry land.
  • You only need slimeballs to start breeding.

Small tip

If you want a safe setup in a cold biome, make the tadpole pool indoors or under blocks so the water stays liquid. That is the easiest way to avoid losing the tadpole to freezing.

TL;DR: Breed frogs, collect the tadpole, then raise it in a non-freezing water pool in a cold biome to get a green cold frog.