How Coffee Trees Grow and Their Cherries Ripen

If you’ve ever wondered how your morning coffee bean began life, the journey starts far from your cup — on a tree. But what does a coffee tree actually look like, how does it produce fruit, and what turns those fruits into the green beans we roast? Understanding how coffee grows gives you insight into why coffee varies so much by origin, variety, and processing.

A typical coffee tree grows to 5–10 metres tall but is pruned to under 2 metres for easier harvesting. It flowers after 4–5 years, produces green coffee cherries that ripen to red in 6–7 months, and each cherry usually holds two coffee beans — except rare peaberries, which are small, round, and prized for their concentrated flavour.

What a Coffee Tree Looks Like and How It Grows

Coffee trees are evergreen shrubs or small trees native to tropical regions. Under ideal conditions, they can reach heights between 5 and 10 metres. However, most commercial coffee farmers prune them down to under 2 metres. This makes harvesting the coffee cherries easier and encourages healthier, more consistent yields. The tree is a vigorous grower with dark green, glossy leaves and a woody trunk.

The Coffee Flowering Stage

Around 4 to 5 years after planting, a healthy coffee tree begins to flower. These flowers typically appear in February or March. Each flower is small, white, and features five delicate, outward-curving petals with a strong fragrance reminiscent of jasmine. The flowers bloom in tight clusters along the branches and are short-lived — lasting just 3 to 5 days.

Their brief appearance marks the beginning of the coffee cherry development cycle. Pollination usually occurs naturally through wind or insects, leading to the formation of coffee cherries.

From Green Cherry to Ripe Red Fruit

After pollination, the flowers develop into small, hard, green coffee cherries. These immature fruits are oval-shaped and firm. Over the next 6 to 7 months, they gradually mature. When fully ripe, the cherries turn a bright, uniform red — similar in colour and size to cherries, which is why they’re commonly called ‘coffee cherries.’ This colour change signals that the beans inside are nearing optimal maturity for harvest. Not all cherries ripen at the same time, which is why selective hand-picking is often necessary to ensure quality.

What’s Inside a Coffee Cherry?

Each mature coffee cherry typically contains two seeds — what we know as coffee beans. These beans sit facing each other on a flat side, wrapped in a sweet, sticky, mucilage layer beneath the cherry’s outer skin. Surrounding each bean is a very thin, silver-coloured membrane called the silver skin. The beans are further protected by a tough, parchment-like husk known as the parchment layer (or endocarp), which is pale and encases the bean to separate it from the fruity mucilage. All of these layers must be removed during processing to reveal the green coffee bean used for roasting.

What Is a Peaberry and Why Is It Special?

Occasionally, a coffee cherry develops only one round seed instead of two. This single, rounded bean is called a peaberry (or caracol in Spanish). Unlike regular flat-sided beans, peaberries are small, almost perfectly round, and make up a very small percentage of a harvest. Because they’re rarer and often separated during sorting, peaberries are usually sold separately and can command higher prices. Many coffee enthusiasts believe peaberries have a more intense and concentrated flavour due to their rounded shape, which may allow for more even roasting and development of flavour during brewing.

The Journey from Cherry to Green Bean

Once the coffee cherries are harvested at peak ripeness, they go through processing — either washed (wet), natural (dry), or honey (pulped natural) methods — to remove the fruit and mucilage. What remains is the green coffee bean still encased in its parchment layer. These beans are then dried, hulled to remove the parchment, sorted, and graded. Only now, as green coffee, are they ready for export and eventual roasting. The entire process — from flower to green bean — takes around 10–12 months depending on climate and processing methods.

Frequently Asked Questions

How tall does a coffee tree grow?

A coffee tree can naturally grow up to 5–10 metres tall, but on commercial farms it is usually pruned to stay under 2 metres high to make harvesting easier and maintain yield quality.

When does a coffee tree start flowering?

A healthy coffee tree typically begins flowering 4 to 5 years after planting, with blooms appearing around February or March. The flowers last only 3 to 5 days and have a strong jasmine-like scent.

How long does it take for coffee cherries to ripen?

After flowering, it takes approximately 6 to 7 months for the green coffee cherries to ripen into bright red fruit. The cherries are ready for harvest when they turn uniformly red.

What is inside a coffee cherry?

Each coffee cherry normally contains two coffee beans that sit flat against each other. They are surrounded by sweet mucilage, a thin silver skin, and a protective parchment layer. All these layers are removed during processing to obtain the green coffee bean.

What is a peaberry coffee bean?

A peaberry is a rare, naturally occurring mutation where a coffee cherry produces a single, round bean instead of two flat ones. They are smaller, rounder, and often considered to have more concentrated flavour. Peaberries make up a small percentage of any harvest and are usually sold separately.

What happens to coffee cherries after harvest?

After being picked at peak ripeness, coffee cherries are processed to remove the fruit and mucilage. This leaves the green coffee bean, which is then dried, hulled, sorted, and prepared for export and roasting.

Recommended FrontStreet Beans Related to Coffee Fruit Growth

Try FrontStreet Coffee’s Ethiopia Humbera for bright, floral notes with citrus and stone fruit — echoing the very cherries coffee comes from. For a classic taste of ripe red fruit, their Yirgacheffe offers juicy acidity with bergamot and jasmine tones. Both highlight the qualities shaped during the coffee cherry’s growth and ripening. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.