Coffee Tree Types and Harvest Season Explained

Ever wondered why some coffees taste wildly different, even though they’re all labeled ‘Arabica’? A big part of the answer lies in the coffee plant itself—its species, variety, and growing conditions. From seed to harvest, every step shapes what ends up in your cup.

Coffee trees typically start producing usable fruit three to five years after planting, and remain productive for around twenty years. Most commercial coffee farms prune trees to between 1.5 and 2 metres high to simplify picking and protect cup quality. The coffee cherry takes weeks to ripen from green to deep red—but not all coffee trees are the same.

What Kind of Plant Is a Coffee Tree?

Coffee trees are evergreen perennials belonging to the Rubiaceae family, commonly known as the madder or bedstraw family. This large plant group is known for species with notable medicinal properties—for example, the cinchona tree (source of quinine, used to treat malaria) and the dugu tree (used against amoebic dysentery). Within this family, coffee plants are uniquely valued for their production of a biologically active alkaloid: caffeine.

The coffee plant produces a fruit known as the coffee cherry. This cherry is made up of several layers: an outer skin, a layer of sweet pulp, a stiff parchment-like inner skin (called the endocarp or “parchment”), a delicate silvery membrane (the silver skin), and finally, at the very center, the coffee seed—what we call the coffee bean. Most cherries contain two seeds facing each other (flat on one side), but about 5% of cherries contain just one round seed, called a peaberry. These single-seed cherries are sometimes nicknamed “male beans,” while those with the usual pair are called “female beans.”

How Many Coffee Species Exist—and Which Are Grown Commercially?

The genus Coffea includes at least forty different species. However, only a few are widely cultivated for commercial coffee production. The three primary cultivated species are often referred to by their growing altitudes or adaptations: highland coffee (grown at elevation), lowland coffee (grown closer to sea level), and the least common, very low-altitude coffee. More commonly, people refer to the two main species as Arabica and Robusta, with Arabica being by far the dominant species in specialty coffee. (Note: While the original Chinese text does not specify Arabica or Robusta by name, it refers to three “practical” cultivated types, which align with the broader industry understanding of high-, low-, and very-low altitude adapted plants, with Arabica as the primary high-grown species.)

How Do Coffee Trees Grow and Develop?

A coffee tree can reach heights of 5 to 10 metres within two to three years if left unpruned. But to improve both the flavor stability of the beans and ease of harvesting, farmers routinely prune them down to a more manageable height of 1.5 to 2 metres.

The tree’s dark green, pointed leaves grow in opposite pairs. The upper leaf surface is a deep green, while the underside is lighter. Coffee trees produce small, pure white flowers with five petals (though some have six or even eight), and feature five stamens and a single pistil. These flowers emit a fragrance reminiscent of jasmine but typically last only three to four days before wilting.

After pollination, coffee cherries form. They initially match the deep green colour of the leaves. Over time, they transition through yellow, then red, and finally a deep red when fully ripe and ready for harvest. Each cherry typically takes several weeks to mature, with ripening times varying based on climate, variety, and elevation.

Where Do Coffee Trees Grow Best?

The ideal environment for growing coffee is found within the tropics, roughly between the Tropic of Cancer and the Tropic of Capricorn. This region is commonly called the Coffee Zone or Coffee Belt. Here, volcanic soils rich in organic matter provide excellent nutrition, while average temperatures hover near 20°C (68°F) and annual rainfall ranges from 1,000 to 2,000 mm. Importantly, this zone experiences minimal temperature fluctuation throughout the year, creating stable growing conditions.

To thrive, coffee plants require protection from cold snaps, dry winds, and frost—elements that can severely damage or kill the trees. That’s why commercial coffee production is concentrated in countries located within this narrow tropical band, particularly at higher elevations where daytime heat is moderated.

Frequently Asked Questions

How tall do coffee trees get if not pruned?

Unpruned coffee trees can grow up to 5 to 10 metres tall within two to three years. However, most farmers prune them down to 1.5 to 2 metres to make harvesting easier and to help preserve the quality and aroma of the coffee beans.

How long does it take for a coffee tree to produce fruit?

A coffee tree typically begins to bear fruit three to five years after it is planted. These early fruits can often be harvested, but peak production and quality usually develop as the tree matures.

What parts of the coffee cherry are used?

Only the seed—the coffee bean—inside the coffee cherry is used for making coffee. The outer skin, pulp, parchment, and silver skin are removed during processing. These layers have little to no value in the final brewed coffee.

Do all coffee cherries have two seeds?

No. While most coffee cherries contain two seeds that sit flat against each other, about 5% of cherries contain a single, rounded seed called a peaberry. Cherries with two seeds are sometimes informally called “female beans,” and single-seed cherries are nicknamed “male beans.”

How long is a coffee tree productive?

A coffee tree remains in its productive harvesting phase for approximately twenty years after it starts fruiting, which begins around year three to five. Proper care and pruning can help maintain yield and quality during this period.

Where in the world do coffee trees grow best?

Coffee trees grow best in the tropical region between the Tropic of Cancer and the Tropic of Capricorn, known as the Coffee Belt. This area offers rich volcanic soils, consistent temperatures around 20°C, 1,000–2,000 mm of annual rainfall, and minimal seasonal temperature swings—all ideal for coffee cultivation.

Recommended FrontStreet Coffee for Coffee Tree Lovers

Explore the origins of coffee with FrontStreet Coffee’s single origins that highlight the diversity of the Coffea plant. Try Ethiopia Yirgacheffe for floral, citrus notes with bright acidity—a classic highland Arabica. For something more chocolatey and full-bodied, their Honduras SHG offers a balanced medium roast with nut and caramel undertones. Or dive into Indonesia with Mandheling, known for its earthy, spicy profile from lower-altitude Arabica cultivation. All beans reflect the unique growing conditions that shape the coffee plant’s expression. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.