Colombian Coffee Varieties and Plant Morphology

If you’ve ever wondered what the coffee plant actually looks like—especially the one that grows Colombia’s most common beans—you’re not alone. Most coffee drinkers never see the living plant, yet its physical traits deeply influence the beans’ quality and flavor potential. Here’s what the coffee tree for Colombia’s main variety really looks like, from leaf to cherry.

Colombia’s primary coffee species is Coffea arabica, specifically the small-seed ("") variety. The plant typically grows as a small tree or large shrub, reaching 5–8 meters tall, with distinct leaves, flowers, and fruit structures that define its growth and development.

What Does the Coffee Plant Look Like?

The coffee plant used for Colombia’s main coffee variety is classified as a small tree or large shrub. It grows to a height of 5–8 meters and usually features multiple branches at the base. Older branches are grey-white with swollen nodes, while younger branches are hairless and flattened in shape. These structural traits support the plant’s growth in high-altitude environments typical of Colombian coffee regions.

Leaves: Shape, Size, and Texture

The plant’s leaves are thin and leathery , shaped like oval-tipped or regular pointed ovals . They measure 6–14 cm in length and 3.5–5 cm in width. The leaf tip comes to a long, gradual point , extending 10–15 mm beyond the main blade. The base is wedge-shaped or slightly blunt, rarely rounded, with smooth edges or very shallow waves. Both leaf surfaces are hairless, though some may have tiny pits in the vein axils on the underside. The central vein protrudes on both sides, with 7–13 side veins per side. Leaf stems (petioles) are 8–15 mm long. Leaf-like structures called stipules are broadly triangular, ranging from 3–6 mm in length, and differ in shape depending on whether they grow on young or old branches.

Flowers: Fragrance, Structure, and Blooming

The coffee plant produces fragrant flowers that grow in clusters called cymose inflorescences , with each cluster containing 2–5 individual flowers. These flower groups emerge from the leaf axils without a noticeable stem or with an extremely short one. Each flower has a stalk (pedicel) that is 0.5–1 mm long. The sepals (calyx) form a tube 2.5–3 mm long, with a flat or slightly toothed edge. The petals (corolla) are white and measure 10–18 mm in length, typically splitting into 5 lobes (though sometimes 4 or 6), which are often longer than the tube itself and usually blunt at the tips. The flower’s reproductive parts include stamens with filaments that extend 6–8 mm beyond the petals, and a pistil with a style 12–14 mm long, ending in a two-lobed stigma about 3–4 mm in size. Flowering generally occurs between March and April.

Fruit: Cherry Size, Color, and Seed Structure

Once pollinated, the coffee plant develops its fruit—commonly called a coffee cherry. These cherries are broad oval in shape, turning red when ripe, and measure 12–16 mm in length and 10–12 mm in diameter. The outer skin is hard and leathery, while the middle layer (mesocarp) is fleshy and sweet. Inside, each cherry typically holds two seeds (coffee beans). Each seed is approximately 8–10 mm long and 5–7 mm in diameter, with a convex back and a flat front that features a longitudinal groove. This internal structure is what ultimately becomes the green coffee bean processed for brewing.

Why Does Plant Morphology Matter for Coffee Quality?

The physical characteristics of the coffee plant—such as leaf size, flower arrangement, and cherry shape—impact how the tree photosynthesizes, sets fruit, and ultimately produces beans. For example, the number and orientation of leaves affect light capture and energy production, while cherry size and seed shape influence processing methods and bean density. Understanding these traits helps farmers and roasters anticipate flavor profiles and growing needs, especially for Colombia’s dominant small-seed Arabica variety.

Frequently Asked Questions

What is the main coffee species grown in Colombia?

The primary coffee species cultivated in Colombia is Coffea arabica, specifically referred to as the "small-seed" or variety. This is the dominant botanical type used for the majority of Colombian coffee production.

How tall does a typical Colombian coffee plant grow?

A standard coffee plant in Colombia, belonging to the small-seed Arabica variety, grows to a height of 5–8 meters. These plants usually branch out significantly from the base.

What do the leaves of the Colombian coffee plant look like?

The leaves are thin and leathery, shaped like oval-tipped or regular pointed ovals. They are 6–14 cm long and 3.5–5 cm wide, with a long, gradually tapering tip (10–15 mm), a wedge-shaped or slightly blunt base, and either smooth edges or very shallow waves. The leaves are smooth on both sides and grow on flattened young branches.

What color are the coffee cherries when ripe?

The coffee cherries of Colombia’s main variety turn bright red when fully ripe. They are broad oval in shape, measuring 12–16 mm long and 10–12 mm in diameter, with a sweet, fleshy interior and two seeds inside.

How many flowers are in each coffee flower cluster?

Each coffee flower cluster, or cymose inflorescence, typically contains 2–5 individual flowers. These clusters emerge from the leaf axils and usually have either no stem or a very short one.

When does the coffee plant flower in Colombia?

In Colombia, the coffee plant generally flowers between March and April. The white, fragrant blooms develop in small clusters from the leaf axils.

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