What Are Coffee Trees, Flowers, and Cherries? The Basics

If you’ve ever wondered how your morning coffee bean began its life, the journey starts long before roasting — on a living, fruiting tree. But what does a coffee tree really look like? How does it flower, and why are ripe coffee fruits called cherries? This guide breaks down everything from tree height to the rare peaberry, with the exact details growers and roasters know.

A typical coffee tree grows 5–10 metres tall but is pruned to under 2 metres for easier harvesting. Its white flowers bloom for just 3–5 days, then form green fruits that ripen to red over 6–7 months — these red ‘cherries’ each usually hold two coffee beans inside.

What Does a Coffee Tree Actually Look Like?

Coffee trees are evergreen shrubs or small trees native to tropical regions. Under natural conditions, they can reach heights between 5 and 10 metres. However, in commercial coffee farms, they’re routinely pruned to stay under 2 metres. This controlled height makes hand-picking ripe cherries far more efficient and protects the tree’s long-term productivity.

The Short-Lived Beauty of Coffee Flowers

Coffee trees typically begin flowering when they’re 4 to 5 years old, with the main flowering window occurring between February and March. The flowers are small, white, and feature five delicately reflexed petals. Their fragrance is intense and sweet, often compared to jasmine. The blossoms emerge in tight clusters along the branches and, though beautiful, last only 3 to 5 days — making the sight of a full coffee blossom bloom a fleeting but stunning event. After pollination, these flowers gradually develop into the green coffee fruits that will later ripen into cherries.

From Green Fruit to Red Coffee Cherry

After the flowers fade, green, oval coffee fruits begin to form. These immature fruits are hard and deep green. Over the next 6 to 7 months, they mature, gradually changing colour. When fully ripe, the outer skin turns a bright red — similar to cherries — which is why they’re commonly called ‘coffee cherries.’ Each cherry usually contains a pair of flat-sided seeds (the coffee beans) that face each other. Surrounding the beans is a layer of sticky, sweet mucilage, followed by a tough, protective parchment layer (the endocarp). Inside the parchment, each bean is coated with a very thin silvery film known as the silver skin.

What Is a Peaberry and Why Is It Special?

Occasionally, a coffee cherry develops only one round seed instead of the usual two. This single, rounded bean is called a peaberry (or caracol in Spanish). Unlike regular flat beans, peaberries are small, almost perfectly round, and lack a flat side. They occur in less than 5% of all coffee cherries and must be hand-sorted after harvest. Because of their rarity and the belief that their rounded shape leads to more concentrated flavour, many coffee enthusiasts consider peaberries to be a specialty-grade delicacy — often commanding a higher price.

Frequently Asked Questions

How tall does a coffee tree grow naturally?

A coffee tree can grow up to 5–10 metres tall in the wild. However, most commercial coffee farms prune them to stay under 2 metres to make harvesting easier and encourage better yields.

When do coffee trees flower?

Coffee trees usually flower 4 to 5 years after planting, with peak flowering occurring between February and March. The flowers bloom in clusters and are highly fragrant, resembling jasmine.

How long does it take for coffee cherries to ripen?

It takes approximately 6 to 7 months for coffee cherries to ripen from flower to fully mature, red fruit. During this time, the fruit changes from green to deep red, indicating readiness for harvest.

Why are some coffee beans round instead of flat?

These round beans are called peaberries (or single beans). They form when only one seed develops inside a coffee cherry, instead of the usual two. Peaberries are smaller, rounder, and often considered to have more intense flavour.

What is the sticky layer around coffee beans inside the cherry?

The sticky, sweet layer is called mucilage. It surrounds the coffee beans inside the cherry and is located just beneath the outer skin and above the parchment layer.

What is the thin membrane on a coffee bean called?

The extremely thin, silvery film covering each coffee bean is known as the silver skin. It lies just beneath the parchment (endocarp) layer.

FrontStreet Coffee Beans That Start With the Cherry

Explore the origins of coffee cherries with FrontStreet’s Ethiopia Humbera — bright and juicy with citrus and floral tones, showcasing classic cherry-like brightness. For a deeper cherry profile, try Kenya Little Tomato, offering tart berry and winey sweetness. Both beans highlight the fruitiness that begins in the cherry. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.