How Coffee Grows: From Tree to Cherry

If you’ve ever wondered how your morning coffee bean began its life, the story starts on a tropical tree—not on a shelf or in a roaster. Understanding where coffee comes from helps explain why certain regions grow better beans, why harvest timing matters, and what makes specialty coffee so unique.

Coffee grows best between the tropics, roughly 25° north and south of the equator, within a zone called the 'Coffee Belt.' But location alone isn’t enough. Ideal conditions include temperatures of 15–25°C, 1500–2000mm annual rainfall timed with flowering, rich well-drained soil, elevation between 500–2000m, and some shade to protect the trees from harsh sun.

What Is a Coffee Bean, Really?

The ‘coffee bean’ is actually the seed inside the fruit of the coffee tree—a small, red or yellow stone fruit often called a ‘coffee cherry.’ Each cherry usually holds two seeds (beans) that sit flat against each other. These seeds are coated in a thin silvery skin (silver skin), wrapped in a yellowish parchment layer (endocarp), surrounded by a sweet, sticky pulp (mesocarp), and encased in an outer skin (exocarp).

The Three Main Coffee Species

Almost all the coffee we drink comes from just three species: Arabica, Robusta, and Liberica.

Arabica (Coffea arabica)

Making up around 70% of global production, Arabica beans are known for their high quality and complex flavours. They originated in Ethiopia and thrive at higher altitudes—between 500 and 2000 metres—where cooler temperatures and larger day-night temperature swings help develop sweetness and acidity. Arabica plants are more delicate, requiring well-drained, fertile soil, partial shade, and careful management. They’re more vulnerable to pests and diseases and yield less fruit per plant compared to Robusta. Most specialty coffees, including famous ones like Blue Mountain and Yirgacheffe, are Arabica.

Robusta (Coffea canephora)

Making up about 20–30% of global coffee production, Robusta is hardier and easier to grow. It originated in the Congo and does well at low altitudes—below 500m—and in hot, humid, and disease-prone environments. Robusta trees require minimal care, can be harvested by machine, and yield more fruit per hectare. However, the beans produce a harsher, more bitter cup with less acidity and complexity. Because of its strong flavour and lower cost, Robusta is mostly used in instant coffee and espresso blends for added crema and body. It’s the dominant coffee in many parts of Africa.

Liberica (Coffea liberica)

Making up less than 5% of the world’s coffee, Liberica is rare and mainly grown in Liberia, Suriname, and Guyana. It grows well at low elevations and produces bold, distinctive flavours with a strong aroma and bitter taste. Its cultivation history is shorter, and it remains limited to a few regions, making it an uncommon choice in the global market.

From Flower to Harvest: The Coffee Growth Cycle

Coffee trees begin flowering about three years after planting. The small, white, jasmine-scented flowers bloom in clusters and last just a couple of days before giving way to small green berries. Over several months, these berries ripen from green to yellow, then orange, and finally to a deep red—ready to be picked. At maturity, each coffee cherry typically contains two seeds (the coffee beans) surrounded by sweet pulp, a layer of parchment, and a thin silver skin.

Most Arabica varieties ripen between June and August, while Robusta varieties tend to ripen between September and October—but this varies with region and climate.

When and How Coffee Is Harvested

Coffee is harvested at different times around the world depending on latitude and climate. In regions north of the equator (like Ethiopia and Central America), the main harvest usually occurs from September to November. South of the equator (like Brazil and Zimbabwe), harvesting happens primarily between April and May, though some areas can extend into August. Near the equator (like Colombia and Uganda), where altitudes and microclimates vary greatly, coffee can be harvested year-round.

There are two main harvesting methods:

• Strip picking: All cherries are removed from the branch at once, either by hand or machine. This method is faster but gathers underripe and overripe cherries together.
• Selective picking: Only fully ripe, red cherries are picked, and pickers return to the trees every 8–10 days. This labour-intensive method is used mainly for high-quality Arabica, especially for washed processing, and results in a more uniform and better-quality crop.

On average, a picker can harvest 50–100kg of cherries per day, but only 20% of that weight is actual coffee beans—about 10–20kg. It takes roughly 3–6 days for one worker to fill a standard 45–60kg bag of green coffee beans. In some regions, harvest labour accounts for up to half of a farm’s annual costs.

In countries like Brazil, mechanical harvesters are sometimes used. These machines shake the trees so that ripe cherries fall onto catchers. However, they only work on flat land with evenly spaced trees, and the harvest still requires extensive sorting to remove leaves, twigs, and unripe or overripe cherries. Because of the challenges, most coffee worldwide is still picked by hand to ensure quality.

Frequently Asked Questions

What is the coffee belt?

The coffee belt refers to the region between 25 degrees north and 25 degrees south of the equator, where the climate is ideal for growing coffee. This area provides the right combination of temperature, rainfall, and altitude needed for coffee trees to thrive.

What are the main types of coffee plants?

The three main coffee species are Arabica, Robusta, and Liberica. Arabica accounts for about 70% of global production and is known for high quality and complex flavours. Robusta makes up 20–30% and is more bitter and robust, often used in instant coffee. Liberica is rare, accounting for less than 5% of production, and has a strong, unique flavour profile.

What conditions do coffee trees need to grow well?

Coffee trees grow best in temperatures between 15–25°C, with annual rainfall of 1500–2000mm timed to match the flowering cycle. They need well-drained, fertile soil, altitudes between 500–2000m, and some protection from direct sunlight, usually provided by shade trees.

When are coffee cherries ready to harvest?

Coffee cherries are ready to harvest when they turn bright red, though some varieties turn yellow. Arabica cherries typically ripen between June and August, while Robusta cherries ripen between September and October. The exact timing depends on the region and local climate conditions.

How are coffee cherries harvested?

Coffee cherries are harvested either by strip picking (removing all cherries at once) or selective picking (picking only ripe red cherries). Selective picking is more labour-intensive and is used for high-quality Arabica, while strip picking is faster and used for commercial-grade beans.

Recommended FrontStreet Coffees for Coffee Lovers

Explore FrontStreet Coffee’s Ethiopia Humbera for a bright Ethiopian single origin with floral and citrus notes, or try Yirgacheffe for classic juicy acidity and berry tones. For something deeper, their washed Yirgacheffe offers clean herbal and citrus profiles. All are specialty-grade Arabica beans grown in ideal high-altitude conditions. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.