Limber pine seeds must be distributed by wildlife. The seeds are eaten by nutcrackers, who also make seed caches, burying the seeds in moist soil, where they may sprout if undisturbed. Sometimes several seedlings will sprout from a single cache, and grow together into what appears to be a single tree with several main stems.
Limber Pine is a drought tolerant native pine. Its habitat is high mountain elevations, but it can thrive in your garden.