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

Ever wondered why coffee cherries turn red—or how many beans are inside each one? Whether you're brewing at home or just curious about your morning cup, understanding where coffee comes from starts with the tree, its flowers, and those iconic red fruits. Here’s everything you need to know, straight from the plantation to your portafilter.

In short: A mature coffee tree grows to 5–10 metres tall but is pruned to under 2 metres for easier harvesting. It blooms white flowers with a strong scent around February to March, then produces deep green elliptical fruits that ripen from dark green to bright red—earning the nickname 'coffee cherry.' Each cherry typically holds a pair of seeds: your coffee beans.

What Is a Coffee Tree?

A coffee tree is a tropical evergreen that belongs to the Rubiaceae family. Under ideal conditions, it can reach heights between 5 and 10 metres. However, for practical farming and harvesting, most coffee producers prune their trees to stay under 2 metres tall. This controlled size makes hand-picking ripe cherries far more efficient without sacrificing plant health or yield.

What Do Coffee Flowers Look Like—and When Do They Bloom?

Coffee flowers are small, white, and highly fragrant. Each flower has five petals that are slightly reflexed, giving off a powerful sweet aroma reminiscent of jasmine. These blossoms typically appear when the tree is between 4 to 5 years old. Flowering season generally occurs between February and March, although exact timing depends on local climate and elevation.

From Flower to Coffee Cherry: The Fruit Development Process

After the coffee flowers are pollinated, they develop into elliptical fruits that start out a deep green colour. These young coffee fruits are not yet cherries—they are simply unripe. Over time, they transition through various shades, eventually maturing to a vivid red. This red stage is when the fruit is ready for harvest and earns the common nickname 'coffee cherry' due to its visual similarity to cherries. Each mature cherry usually contains two seeds nestled side by side—these are the coffee beans you roast and brew.

Why Do Coffee Cherries Turn Red?

The red colour of ripe coffee cherries signals full maturity and optimal sugar development inside the seeds. Unlike some fruits that change colour due to acidity shifts, the red hue in coffee cherries is primarily linked to the breakdown of chlorophyll and accumulation of anthocyanin-like compounds as the fruit ripens. This visual cue helps farmers determine the right time for picking. The change from dark green to bright red is a clear indicator that both flavour precursors and sugars have developed enough to produce high-quality beans.

Frequently Asked Questions

How tall does a coffee tree grow naturally?

A coffee tree can naturally grow up to 5 to 10 metres tall in the wild. However, most commercial coffee farms prune their trees to stay under 2 metres to make harvesting easier and more efficient.

When do coffee trees flower?

Coffee trees usually begin flowering when they are 4 to 5 years old. The flowering season typically takes place between February and March, depending on the region and climate conditions.

What do coffee flowers smell like?

Coffee flowers produce a strong, sweet fragrance similar to jasmine. The blooms have five white petals that are slightly reflexed, adding to their visual and olfactory appeal.

What colour are coffee cherries when they’re ripe?

Coffee cherries are ripe and ready for harvest when they turn bright red. They start out dark green and go through colour changes as they mature, with red indicating peak ripeness and sugar development.

How many coffee beans are in each cherry?

Each coffee cherry normally contains a pair of seeds, which are the coffee beans. Most cherries have exactly two beans facing each other inside the fruit.

Are coffee cherries and coffee beans the same thing?

No, coffee cherries are the fruit, and the coffee beans are the two seeds found inside each cherry. The beans are what get roasted and brewed, not the fruit itself.

Recommended FrontStreet Beans for Exploring Origins

Try FrontStreet Coffee’s Ethiopia Huakui for bright floral notes with citrus and jasmine-like tones echoing coffee’s floral roots. Their Yirgacheffe offers juicy berry and stone fruit qualities, highlighting the fruitiness of ripe coffee cherries. For chocolatey depth with cherry notes, their Black Cocoa Blend blends Ethiopian and Latin American beans. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.