A box of flowers crossing a border is not a parcel. It is a plant product, and plant products are regulated by a different arm of government from the one that handles your spares and your wine. That is the whole reason this goes wrong. A crew member sends flowers the way they would send anything else, and the box meets a plant health inspector who wants documents nobody prepared.
Everything below comes from doing this repeatedly, not from reading about it. It is written for chief stewardesses, pursers and captains, not for freight people.
The four documents
Every real flower consignment travels on four documents, and they have to agree with each other line for line.
- The detailed invoice. Every stem listed under its botanical name, with the country it was grown in. Not "mixed flowers", not "assorted stems". Rosa, Zantedeschia, Phalaenopsis. Customs will not accept a description they cannot check.
- The packing list. What is in which numbered box. This is what stops an inspector opening every box on a hot apron to work out what he is looking at.
- The phytosanitary certificate. The plant health inspection, done and signed in the exporting country. It is the document that lets flowers cross a border at all.
- The air waybill. The flight itself, and critically, who the goods are addressed to.
All four reach the agent at the destination at least 48 hours before the flight lands. The point of that is simple: customs has the file open before the boxes arrive, so the boxes are not sitting somewhere warm while somebody looks for an email.
The consignee wording that saves you the duty
This is the part that most people get wrong, and it is expensive. The air waybill and the invoice must consign the goods to the vessel, not to a person and not to the marina. The wording is:
Yacht in transit, M/Y [vessel name], care of [the local agent].
Goods delivered to a yacht in transit are ship's stores. Ship's stores are not an import. Address the same box to "Chief Stewardess, Simpson Bay Marina" and it becomes a commercial import into that country, and somebody pays duty on it, plus a handling fee, plus whatever the delay costs in dead flowers.
The import permit, and why it sets your lead time
Some countries want a permit before anything can even be bought. This is the single most misunderstood part of the process, because of what the permit does: it fixes the species list and the country of origin. Once it is granted, nothing can be substituted.
The application has to come from someone registered in the destination country, so it goes in through the agent at that end rather than from Holland or from the boat. In practice that means the supplier arranges it and chases it, and nobody on board ever sees a form.
So if the permit says Dutch-grown roses and the auction that morning has better Kenyan ones, the Kenyan ones cannot go. And because the permit has to exist before the buying, the permit is what sets the lead time, not the flight.
Which means the useful question is never "when do you need the flowers". It is which port, and what date. Answer that early and everything downstream is routine.
Country by country
Sint Maarten
Permit and certificate. Princess Juliana handles perishables and the marinas are minutes from the airport, and at nine hours in the air it is a short lane. It is also the gateway for St Barths, which has no cargo airport. The permit takes 5 to 7 working days, planned once before the first order, and then stays on file for the season.
Saint-Barthélemy
No cargo airport. Gustavia's runway takes light aircraft only, so every real consignment clears at Sint Maarten and moves across by boat or light aircraft, travelling under the Sint Maarten permit rather than one of its own. Plan that leg or the flowers cook waiting for it.
Antigua
Permit and certificate. The permit is applied for by the agent and takes 5 to 7 working days. This is the one that catches out boats arriving for the Charter Yacht Show in December, where the flowers matter more than usual because brokers are walking through them. About 35 hours in the air, the longest of the Caribbean lanes.
British Virgin Islands and St Vincent and the Grenadines
Permit and certificate for both. Same principle: agent applies, 5 to 7 working days, species list locked once granted.
US Virgin Islands
United States territory, so United States plant import rules apply. This is the heaviest paperwork of any Caribbean port and it is inspected on arrival rather than cleared on documents. Doable, but not the port to choose if you have a choice.
Maldives
Permit and certificate. The agent must also report the arrival of the consignment to the plant quarantine inspector at the port of entry, which is an agent task, not a shipper task. Goods without a permit can be quarantined or destroyed. Allow one to two weeks for the permit, and plan it well ahead of the date.
Seychelles
Permit and certificate, and the permit takes one to two weeks. Its number has to appear on the phytosanitary certificate issued at departure. That means the permit must be in hand in Holland before the certificate is signed. Nothing on the list can be swapped afterwards.
Thailand
Import permit and certificate, and the permit takes one to two weeks, so Phuket wants planning from the start of the season. Once that is in place it is a fifteen hour flight and one of the more straightforward long-haul lanes.
Singapore
The interesting one, and worth reading twice if your itinerary touches it. Fresh cut flowers need no phytosanitary certificate. But cut foliage, branches, stems and grasses do. So a box of pure flowers clears easily, and the moment somebody adds eucalyptus or bear grass to the same box, the whole consignment needs a certificate.
Separately, a trade permit is still required for the commercial consignment. It is cheap, it takes a working day or two, and the agent files it, not you. All cut flowers also get inspected after entry at approved premises, which is another reason the agent has to be set up in advance.
Indonesia
No import permit. Certificate required, and the inspection date must appear on it. There is also a step that has nothing to do with paperwork at the border: prior notice must be filed online before the flowers leave. Miss that and the consignment is non-compliant on arrival no matter how good the rest of the file is.
What this means for the person on board
None of it should reach you. In a properly run shipment the chief stewardess gives a port and a date, and the next thing that happens is boxes arriving cold at the passerelle. The permits, the certificates, the botanical names, the consignee wording and the agent relationship are the supplier's job.
But it is worth knowing this exists, for one reason. When a florist tells you they can ship anywhere in the world and does not ask you which port and what date, they have not done it before.