Hass avocado trees are best known for their edible fruits with bumpy, dark skin and pale green, creamy flesh. First established in California, this cultivar is believed to be a hybrid of Mexican and ...

Mary Lu Arpaia, head of UC Cooperative Extension's avocado breeding program, looks for Luna UCR avocados at an Irvine orchard in July. The new variety has roots in Ventura County. A new variety of ...

DEAR GARDEN COACH >> We have a Hass avocado tree that’s loaded with fruit for the first time. We put some in a brown bag with bananas, but they are not ripening. How will we know when to pick them? We ...

In 1925, Rudolph Hass (rhymes with pass) was 33 years old and earning 25 cents an hour as a mail carrier in Pasadena. Originally from Wisconsin, he had decided to come West to seek his fortune. But ...

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One postman revolutionized the avocado industry; by the 1970s, the variety he created had become the leading one and a major Californian industry.

For the Hass family, the concept of a family tree is quite literal, as Rudolf Gustav Hass grew an avocado tree that would change their lives. Rudolf’s avocado venture began when he purchased an acre ...

Hi, Garden Coach: We have a Haas avocado tree that’s loaded with fruit for the first time. We put some in a brown bag with bananas, but they are not ripening. How will we know when to pick them? We ...

Q. We planted a Hass avocado tree in our backyard about 10 years ago. The tree is now about 15 feet tall, and seems very healthy. It produces many large avocados each year, but they do not ripen and ...

A new kind of avocado — created by UC Riverside researchers — may be appearing in grocery stores in coming years. The Luna UCR avocado will soon be marketed to growers worldwide, though it will be a ...

A new variety of avocado that can trace its origins to Ventura County was released to growers in June. Researchers with University of California Cooperative Extension said the variety — called Luna ...