Limoneira (Portuguese for "Lemon Tree") is a public limited agribusiness and real estate development company based in Santa Paula, California, United States.

In January 1908, the newspaper Ventura Free Press ran a story for Limoneira called "Greatest Lemon Ranch in the World", saying ""A further increase in the size of the largest lemon plantation in the world...will be the result of planting this season at the Limoneira Ranch.

The crop last year was the largest since the planting has begun..Bigness is not the chief end kept in view the management of the ranch.

The Company also has a 35% interest in Rosales S.A., a citrus packing, marketing and sales operation in La Serena, Chile.

The Rental Operations segment rents residential and commercial properties, such as office buildings and a multi-use facility consisting of a retail convenience store, gas station, car wash, and quick-serve restaurant.

The Company also owns and rents 267 work force housing units and leases approximately 610 acres of land to third party agricultural tenants.

The company owns three commercial parcels in Santa Maria, California with rights to develop 450 residential units.

Limoneira employs sustainable practices in virtually each aspect of its day-to-day business and has made strategic investments in solar, water, soil and IPM (Integrated Pest management).

In the Tulare County town of Ducor, about 150 miles (240 km) north of Santa Paula, Limoneira installed four smaller solar arrays that together generate another full megawatt of electricity to power 250-horsepower motors that pump deep well water into reservoirs for the irrigation of 1,000 agricultural acres.

It is estimated that, over their expected 25-year lifespan, Limoneira's solar generation of 84 million kilowatt hours will save at least 64,000 tons of greenhouse gases that would have otherwise been emitted by an ordinary oil- or coal-firing power plant.

Agromin is a manufacturer of premium soil products and the green waste recycler for more than 50 communities cities in Los Angeles, Orange, Santa Barbara, and Ventura Counties.

The material is converted into mulch that is spread in Limoneira orchards to curb erosion, improve water efficiency, reduce weeds and moderate soil temperatures.

Limoneira maintains a complete Integrated Pest Management system to bring our sustainably-grown products to market.