The coco de mer seed: a unique botanical treasure

An icon of the Seychelles and an extraordinary botanical curiosity, the coco de mer seed, from the Lodoicea maldivica palm, fascinates botanists as much as collectors, museums, decorators and art shops. Known worldwide for its callipygian silhouette evoking human buttocks, it is above all renowned for being the largest seed ever produced by a plant.

Between an endemic species, a monumental nut and a symbol of preserved islands, the coco de mer combines all the attributes of an exceptional piece: a precise origin, limited cultivation, an almost mythical aura, and strong decorative power.

The coco de mer: a giant seed from the Seychelles

The coco de mer comes from a unique palm tree, the sea coconut (Lodoicea maldivica), an endemic species of the Seychelles that grows naturally on two granitic islands, Praslin (especially the Vallée de Mai, a UNESCO World Heritage site) and Curieuse. The plant is dioecious, slow-growing, and produces only a few fruits per palm each year, with females bearing several seeds at different stages of maturation. A recent census led by the Seychelles Islands Foundation reports approximately 5,800 monitored sea coconut trees, confirming concentrated populations and sparse fruiting.

Emblematic dimensions (order of magnitude):

• Average seed weight: up to 40 kg but an average of 15 to 20 kg

• Maximum length: up to 50 cm for the bilobed seed.

• Typical width/diameter: 28–30 cm on average.

The Lodoicea seed is, therefore, by far, the largest seed in the world in both mass and dimensions.

💡Good to know : despite common usage, the coco de mer is not the "fruit" in the "edible" sense of the sea coconut but rather its bilobed seed. The fruit refers to the large drupe that encloses it and takes several years to mature.

Why is this seed nicknamed “coco de mer”?

The nickname comes from a visual observation: the bilobed seed clearly resembles human buttocks. This analogy was established very early in French by the adjective callipyge, borrowed from ancient Greek καλλίπυγος (kallípugos), literally "with beautiful buttocks", formed from κάλλος (kállos, "beauty") + πυγή (pugḗ, "buttock"). The term is attested in French from the 18th century and popularized by the Callipygian Venus.

It therefore served as a historical scientific epithet for the species, formerly cited as Lodoicea callipyge. Hence the common use of "coco de mer" to designate the Seychellois seed whose shape has made it famous.

Why is this seed so rare?

The coco de mer seed is endemic to the Seychelles and grows naturally only on Praslin (especially the Vallée de Mai) and Curieuse. Its very restricted area, combined with strict protection of the environment, already explains a large part of its rarity.

Several biological and ecological factors combine:

• Extremely slow cycle: the fruit takes an average of 6 to 10 years to mature, then the seed can take up to 2 years to germinate. Annual production per palm therefore remains low.

• Dioecious species and limited population: males and females being on distinct individuals, pollination and fruiting depend on concentrated and small populations. Field monitoring shows only a few thousand trees.

• Environmental requirements: this palm thrives in particular microclimatic conditions of the granitic forests of the Seychelles, difficult to reproduce in greenhouses due to the cultivation duration, heat and humidity requirements, and the slow growth of giant palms.

➜ Result: even with active conservation, the coco de mer remains a rare species, with limited recruitment and strictly regulated trade, which keeps the seed in the category of exceptional botanical pieces.

Does the coco de mer seed keep well?

Yes. A properly prepared and stabilized coco de mer seed (sea coconut, Lodoicea maldivica) can be preserved for several years, even decades, without losing its iconic appearance, provided that a reliable indoor environment is maintained. Legally marketed specimens are non-viable (degerminated), well-dried and sometimes polished, which limits the risks of internal rancidity and mold development.

To ensure good preservation:

• Stable temperature: ideally 18–22 °C, away from heat sources (radiators, fireplaces, display cases with spotlights).

• Controlled relative humidity: aim for 45–55% RH to avoid cracking (too dry air) or mold (too humid air).

• Light: no direct sunlight, prefer diffuse, non-UV lighting.

• Suitable support: a display stand that distributes support over the widest part of the nut, without pressure points (more on this later in the article).

• Dust and deposits: dry dusting, microfiber cloth, avoid oils, colored waxes and solvents.

• Shocks and handling: limit rotation and avoid prolonged contact with abrasive surfaces.

• Monitoring: periodically inspect the appearance of the shell (cracks, stains), the smell (sign of humidity) and the inside if the piece is hollow.

In a temperate and stable indoor environment, a well-prepared seed will last a long time and retain its appearance for decades. This longevity as an exhibit botanical object, combined with very low natural production and a strict regulatory framework, directly contributes to the rarity and value of the pieces.

The coco de mer: an endangered seed

The coco de mer has long been poached for its supposed aphrodisiac properties and its extraordinary appearance. To curb the pressure, the authorities have tightened regulations: it is forbidden to bring it back from a trip without official documents, and trade is regulated.

How to recognize a legal piece:

• Light green stamp affixed to the nut attesting to controlled origin.

• Numbering and traceability associated with the seed (provenance, year, status).

• Documents provided upon purchase: proof of origin, export and ownership details.

• Sale via authorized shop or recognized auction house, never as an untraced "souvenir."

Auctions remain possible for raw, carved or polished specimens, particularly at Drouot, Christie's, Artcurial or Bonhams, where the history of ownership and document compliance are carefully examined. Outside these channels, prefer a clear offer in a specialized shop, with advice on conservation.

How to display your coco de mer seed?

Displaying a coco de mer requires a precise support to secure the piece and reveal its bilobed silhouette without stress points. This is exactly the role of the display stand developed by La Bulle: a steel support designed to match the geometry of the seed at its widest part and stabilize the whole without obscuring the shape. The device consists of a discreet base and two adjustable support arms.

Before manufacturing, you provide us with the dimensions of your seed (length, width, circumference at the widest point) so that we can pre-calibrate the support.

Upon receipt, a simple final adjustment allows for optimal support and display angle, whether the piece is raw, polished, or sculpted. The result: a safe, clear, and elegant presentation, ready for a boutique display, a cabinet of curiosities, or a living room.

The characteristics of our display stand for coco de mer

Designed for clear and secure presentation, without marking the shell:

• Material: formable steel, rigid and hand-adjustable

• Manufacturing: made in France, softened finishes

• Available bases: square 15 × 15 cm or rectangular 15 × 12 cm (choice according to seed dimensions)

• Architecture: two support arms + a central vertical rod

• Central rod: round rod Ø 10 mm

• Support rod: Ø 6 mm, positioned 3 to 5 cm below the widest point to secure the base

• Final adjustment: simple shaping to distribute support and prevent any slipping

What is the price of a coco de mer?

Expect a few hundred euros for a basic certified seed (small size, standard condition), typically 300 to 800 €. Beautiful, well-preserved, and large specimens are more likely to be between 1,000 and 2,500 €. At auction, certain unique pieces (provenance, rarity, polished or sculpted work) can exceed 3,000 to 5,000 €, and records sometimes break the 5,000 - 10,000 € mark.