Frostkin kale has been bred specifically for the shorter growing seasons in the north. It is also very cold resistant.
The one thing that can repel a swarm of Chitters is the scent of the Jeriba plant.
Derived from common rats, these mutated creatures are bigger, heavier, and possess both sharp teeth and an armored exoskeleton.
Highly intelligent domesticated desert animals able to withstand the desert heat.
