The Four Types of Coffee Trees in the World

Coffee lovers rarely think about where their beans truly come from—but understanding the plant behind the cup reveals a lot about quality, flavor, and growing conditions. If you’ve ever wondered how many kinds of coffee trees exist or why some coffees taste so different, the answer starts with botany. Most specialty coffee drinkers are only familiar with one species, but in reality, coffee comes from one of just four distinct tree types.

There are four coffee tree species: Arabica, Robusta, Liberica, and Excelsa. Of these, Arabica is the most widely grown and prized, especially in Colombia, which focuses almost entirely on high-quality Arabica varieties.

The Origins of Coffee and Its Global Spread

Coffee originated in Kaffa, Ethiopia. It made its way to Colombia in 1808, brought by a priest traveling from the French Antilles via Venezuela. Today, Colombia is the world’s fourth-largest coffee producer, following Brazil, Vietnam, and Indonesia. The country’s coffee industry is built on centuries of cultivation, steeped in both tradition and agricultural innovation.

The Four Species of Coffee Trees

Globally, coffee is grown from one of four botanical species:

• Arabica (Coffea arabica): The most common and preferred for specialty coffee, accounting for over 60% of global production. It includes numerous cultivars and is known for its complex flavors.
• Robusta (Coffea canephora): Hardier and more bitter, often used in espresso blends for its strong crema and higher caffeine content.
• Liberica (Coffea liberica): Rare and distinct, with a woody, smoky flavor profile; grows mostly in Southeast Asia.
• Excelsa (Coffea liberica var. dewevrei): Technically a subspecies of Liberica, but often classified separately. It offers tart, fruity notes and is also quite rare.

Each of these species has multiple cultivars and varieties, many developed through selective breeding to improve yield, disease resistance, or flavor.

Why Colombia Focuses on Arabica—and Does It So Well

Colombia grows almost exclusively Arabica coffee, particularly its own nationally developed Caturra and Castillo hybrids, which are resistant to pests and diseases and offer high yields. These varieties were bred by Colombian agronomists to thrive in the country’s unique coffee-growing conditions.

The country’s coffee is cultivated in the Coffee Triangle—comprising the departments of Caldas, Quindío, and Risaralda—at elevations between 1,200 and 1,400 meters above sea level. This region lies within the northern tropics (north of the equator, south of 13°N), with ideal conditions: volcanic soil, consistent rainfall, mild temperatures, and no frost. The landscape resembles tea plantations, with coffee trees ranging from shrub-height to over four meters tall.

Coffee farming in Colombia follows a meticulous, labor-intensive process:

• Seeds are selected from mid-tree, choosing plump, shiny beans ideal for planting.
• These are germinated in bags; seedlings sprout in a grass-like form, growing a new pair of leaves every month.
• After six months, they’re transplanted, and trees begin fruiting around two years later.
• A coffee tree typically produces for about eight years before being replaced.
• Fruit and flowers can coexist on the tree; white, unscented coffee blossoms resemble jasmine.
• Each coffee cherry usually holds two beans inside.

How Colombian Coffee Is Processed and Harvested

Colombian coffee is processed using the washed (wet) method. The coffee cherries are depulped to remove the fruit, then fermented to break down mucilage. The leftover pulp serves as fertilizer. The beans are soaked to remove sticky layers, then dried, hulled, and roasted.

Roast duration and temperature significantly influence flavor. Longer, hotter roasts produce deeper, richer cups, while shorter, cooler roasts yield lighter, more acidic profiles.

Harvesting is done entirely by hand, twice a year—in May and October—selecting only perfectly ripe cherries. This contrasts with countries like Brazil, where machines harvest all cherries at once, regardless of ripeness, and often skip washing, leading to inconsistent cup quality.

The Role of People and Organizations in Coffee Excellence

Colombia’s coffee success is also institutional. The National Federation of Coffee Growers of Colombia was established early on to organize production and export. It operates offices globally, employs strategic marketing (like the iconic Juan Valdez character), and ensures quality control.

Around 25% of Colombian coffee exports go to Germany, with significant volumes also sent to the United States—including to Starbucks. While the premium Juan Valdez brand is positioned for export, other domestic labels like SELLO ROJO and OMA are popular locally and considered delicious by locals, often at lower price points.

Many coffee estates, including those open to visitors, offer freshly brewed house-made coffee—often single-origin, unblended, and picked at peak ripeness. Some farmers are even considering creating independent brands, especially those managing large estates of 75 hectares or more.

Frequently Asked Questions

What are the four types of coffee trees in the world?

The four coffee tree species are Arabica, Robusta, Liberica, and Excelsa. Arabica is the most widely grown and favored for specialty coffee, while Robusta is known for higher caffeine and stronger crema. Liberica and Excelsa are rarer, with unique flavor profiles and limited cultivation regions.

Why does Colombia only grow Arabica coffee?

Colombia focuses on Arabica due to its ideal high-altitude growing conditions and the species’ suitability for producing high-quality, nuanced cups. The country’s agronomists have also developed disease-resistant Arabica hybrids like Castillo and Caturra, optimized for local volcanic soils and mountainous terrain.

How is coffee processed in Colombia?

Colombian coffee is processed using the washed (wet) method: cherries are depulped, fermented, washed, dried, hulled, and roasted. This method enhances cleanliness and clarity in the cup, distinguishing it from dry-processed or mechanically harvested coffees.

What makes Colombian coffee growing conditions so good?

Colombia’s coffee grows in the Coffee Triangle at 1,200–1,400 meters altitude, within the tropics north of the equator. The region has consistent rainfall, no frost, rich volcanic soil, and diffused sunlight—all ideal for high-quality Arabica cultivation.

Is Colombian coffee handpicked?

Yes. Colombian coffee is harvested entirely by hand twice a year, selecting only ripe cherries. This contrasts with countries like Brazil that use machines to harvest all cherries indiscriminately, often leading to lower quality due to unripe or overripe beans.

Are there other coffee species besides Arabica?

Yes. Besides Arabica, the other main coffee species are Robusta, Liberica, and Excelsa. Each has different flavors, growing needs, and levels of commercial cultivation. Arabica is most common in specialty coffee; Robusta is common in espresso blends; Liberica and Excelsa are rare and regionally specific.

Recommended FrontStreet Beans for Exploring Arabica

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