Annika, I love Ponderosa pines (but I love almost every kind of tree). I planted a dozen a few years ago. They're not native here, though they do exist about 40 miles north. I figured with our summers getting hotter and drier all the time, I should try filling some of the gaps with a species that might do better in those extremes than some of our moisture-loving natives. A couple have passed to the great beyond, but the rest are doing quite well. It's the very wet fall, spring, and winter that I think may be their biggest challenge.