Trade guide · Storage and handling
Storing and shipping preserved flowers: a trade guide
VivaPetal packs preserved material for the warehouse as well as the van — moss in 5 kg cartons with an inner bag, flower heads bagged in layers, stems laid flat and tied — because most damage happens after the production floor. This guide is written for the trade side of that journey: importers receiving cartons, distributors holding stock, and anyone repacking before the material goes out again.
How long preserved material keeps in storage
Indoor conditions, sensibly handled, give three to five years (as of October 2026). That figure describes a finished piece in a room, not a carton in a warehouse, and the difference matters. Storage life is not a clock that runs down on its own — it is a function of humidity, heat, light and compression, and a carton can lose more condition in one bad season than in two good years.
The practical target is a dry store with a stable temperature, cartons sealed and off a concrete floor. Concrete wicks moisture into the base of a carton, and a carton that has been opened and left open is the single most common cause of a quality complaint arriving months after delivery. Reseal part-used cartons the same day; the material picks up ambient moisture through the packing, not through the flower.
Damp, heat, direct light and weight on top are the four things that shorten a shelf life, and three of them are storage decisions rather than product faults. The fourth — weight — is a stacking decision, and it is worth a written rule in a warehouse that handles several lines at once.
Receiving a shipment: what to check first
Check the outside before you check the inside: carton count against the packing list, seals intact, labels legible and matching the references you ordered, no crush marks and no water staining. That takes ten minutes and settles most disputes before they start. Once the cartons are in the rack, the evidence is gone.
Then open and check line by line — reference, colour, piece count — and check grade against the retained reference rather than against memory. Grade and colour are confirmed per order on the quotation, so the quotation is the document the carton is measured against. If a line reads short or off, photograph the carton, the label and the affected pieces before anything is moved or repacked, and tell us the same day.
One habit worth building: do not repack on arrival. Keep the material in the carton it travelled in until it has been checked, because the original packing is what the shipment was designed around and what any claim will be judged against.
Storing loose material by type
The three families fail in three different ways, so they are stored in three different ways. Treating a carton of heads like a carton of stems is how a good order arrives looking second-grade.
| Material | Store it | The failure to avoid |
|---|---|---|
| Rose heads and other flower heads | Bagged, in layers, nothing stacked on top | Flat petals and a crushed silhouette |
| Stems and bunches | Laid flat, bundle still tied, head end protected | Bent stems and heads that find new angles |
| Moss, loose or sheet-mounted | In its carton with the inner bag closed | Softening and colour shift in damp air |
Heads are the part of the product that is looked at, so they get the space: bagged, laid in shallow layers, and never at the bottom of a stack. Stems are the opposite problem. A bundle stands well in a vase and badly in a warehouse; laid flat with the bundle still tied, it holds its shape, whereas an untied bunch left upright will relax and the heads will settle at new angles that no amount of later arranging fully corrects.
Moss is the one line where moisture is the whole story. It arrives in 5 kg cartons with an inner bag, and the bag is doing the work — the material absorbs across its whole surface, so an open carton in a damp store softens and can shift colour. Sheet-mounted panels are the same material in a different format and want the same treatment: flat, sealed, and not stacked under weight.
Repacking, carton size and chargeable weight
Repacking is where a well-planned shipment quietly becomes an expensive one. A small order in a large box still bills on volume, so the instinct to give the material room can cost more than it saves. If you are splitting a carton, split it into a carton sized for what is actually inside, and keep the reference on the inner bag — colour code, grade and count are what a workshop needs when it pulls a bag six weeks later, and a bag with a handwritten note is a bag that will be mis-picked.
If you are repacking into your own branded packaging, that is a separate process with its own lead time; our guide to private label preserved flowers sets out what each route needs. For resale, the one document worth passing on is a care sheet — we keep a plain-language care and storage guide you can hand to your own customer, filed with the other downloads on the resources page.
On cost, the rule is one sentence: air and courier charge the greater of actual weight and volumetric weight, where volumetric weight is length × width × height in centimetres divided by the carrier's divisor, usually 5000 or 6000. Preserved material is light for its size, so most cartons bill on volume.
A carton one size larger than it needs to be can add cost without adding a single stem. Get the divisor from your forwarder, measure the carton you are actually shipping rather than the one on the specification, and treat the carton plan as part of the order rather than an afterthought at packing. Terms, documents and the difference between EXW, FOB and DAP are set out in the shipping terms guide.
Colour consistency across a set
Two cartons from two production runs of the same recipe will read slightly different when they are placed side by side, because the colour is dyed into a natural material rather than printed onto it. On one piece nobody notices; across a set that is sold together, it is the first thing a customer sees. The answer is ordering the whole quantity as one run and keeping the cartons from that run together through the warehouse.
Storage can move a colour as well. Cartons stored against a heater, under a skylight or in a damp corner will drift, and naturals drift more visibly than tinted references. If a set has to be shipped in stages, keep the staged stock sealed and in the same conditions as the rest, and tell us at the re-order stage which set it belongs to — a retained physical reference is what a re-order is checked against, and the terms are defined in the preserved flower glossary.
Where the material comes from affects how much a batch moves between seasons. Our guide to sourcing preserved flowers from Kunming explains why the base tone is not a constant, and what that means for a buyer planning a re-order a year out.
Common questions
Storage questions from importers
Cold is less of a problem than moisture. The risk is the cycle: material that moves between a cold store and a warm shop, or a cold container and a warm loading bay, can pick up condensation, and that is what softens petals and shifts colour. A dry, stable store is a better home for it than a cold one that swings.
Against the reference and the grade stated on your quotation, not against a general description. Grades are confirmed per order when we quote, so the quotation is the document to open alongside the carton. If a line reads differently, photograph it before you repack and tell us the same day.
Often, yes. Neutral, unbranded packing can be arranged so your supplier's name does not appear on the carton, and it is worth asking for it when the order is placed rather than at packing. What is possible depends on the references and the quantity.
Photograph the carton, the label and the affected pieces before anything is moved, then tell us straight away. We look at each case on its facts and agree what to do before material is thrown out — a photograph taken at the loading bay is worth far more than a description sent a week later.
Next step
Tell us where the carton is going and how long it will sit
The destination, roughly how long the stock will be held, whether it is going out again as a set, and the references involved. You get the carton plan, the chargeable weight and a packing format suited to that route.