When the Chain Breaks
A cut flower is a severed organ consuming its own reserves. From the moment it leaves the plant, it is running down a clock — and that clock runs faster with every degree of warmth. Commercial growers ship stems at two to four degrees Celsius. Wholesalers hold them in the same range. The cold chain is not a single refrigerator; it is a sequence of temperature-controlled handoffs, and it only performs when every link holds.
Most of the breaks happen at the transitions. A wholesaler loads a van without refrigeration for an overnight run. A florist leaves an intake delivery on a loading dock for an hour before moving it inside. Stems sit in a warm workroom while they are conditioned, trimmed and arranged. Each warm episode does not stop the clock — it accelerates it. Ethylene accumulates, petals loosen, stems begin to bacterial-rot at the cut. By the time a flower reaches your venue, it may have burned through three days of vase life without looking as though it has.
The signs are not always obvious at reception. A rose that feels firm and looks open may already be near the end. The tell is in the base of the stem: a brown, soft section above the cut, even after re-trimming, suggests bacterial load accumulated in transit. Lilies may be fine — they are robust travellers. Sweet peas and garden roses are not; they feel the breaks hardest.
For a wedding, the practical consequence is that flowers delivered Friday evening for a Saturday event must have been held cold all the way to the florist's door, and the florist's cold room must actually be running. Worth asking — not as a gotcha, but because the answer changes how early conditioning should start and how the arrangements need to be stored overnight. A venue with no cool holding space is a problem worth solving before the week of the wedding, not after the flowers have arrived.
The chain does not have to be perfect. It has to be unbroken.