But the avocado's modern popularity didn't take off until the 20th century when a man named Rudolph Hass unknowingly planted a tree that would change everything. The story of Hass is unique.

Exactly. You're seeing all of these new arrivals to LA who come wanting to set up their own gardens and have these beautiful backyards, which are full of trees, and that's what happens with Rudolph ...

Available in Australia from May to January, Hass are the dominant variety of commercially grown avocado worldwide. They were cultivated by horticulturalist Rudolph Hass in California in the 1920s.