Owing to its taste, size, shelf-life, high growing yield and in some areas, year-round harvesting, the Hass cultivar is the most commercially popular avocado worldwide.

[6] In 1926, at his 1.5-acre grove at 430 West Road, La Habra Heights, California, Hass planted three seeds he had bought from Rideout, which yielded one strong seedling.

[1] The Hass avocado had one of its first commercial successes at the Model Grocery Store on Colorado Street in Pasadena, California, where chefs working for some of the town's wealthy residents bought the new cultivar's big, nutty-tasting fruit for $1 each, a very high price at the time (equivalent to $17 in 2023).

[1] Owing to later suburban sprawl in Southern California, the mother tree stood for many years in front of a residence in La Habra Heights.

The wood was stored in a tree nursery and from this stock, a nephew of Rudolph Hass, Dick Stewart,[8] made keepsakes, jewelry and other gifts.

However, the heavy crop can deplete stored carbohydrates, lowering the following season's yield and this can set the tree into a lifelong alternate bearing pattern.

Southern California Hass Avocado groves have good soil and drainage, plentiful sunlight and cool gentle winds from the oceans which help the fruit grow.