Hardy
/ˈhɑːdi/
noun
(usually in the plural) Anything, especially a plant, that is hardy.
A blacksmith's fuller or chisel, having a square shank for insertion into a square hole in an anvil, called the hardy hole.
adjective
Having rugged physical strength; inured to fatigue or hardships.
Able to survive adverse growing conditions.
“A hardy plant is one that can withstand the extremes of climate, such as frost.”
Brave and resolute.