How to Keep Cut Flowers Fresh for Longer
To keep cut flowers fresh, trim 1-2 cm off each stem at an angle with a sharp knife, put them in a scrubbed vase with clean cool water and flower food, and strip every leaf that would sit below the waterline. Then change the water and re-trim the stems every one to two days, and keep the vase away from radiators, direct sun and fruit. With that routine, most bouquets last a week, and roses, chrysanthemums and carnations often last two.
In our Saint Petersburg shops, the question we hear most after 'how much' is 'how do I make it last'. Customers usually expect a secret trick, a spoonful of sugar or an aspirin. The truth is less exciting and much more reliable: flowers die early from bacteria, warmth and blocked stems, and almost everything that helps is about fighting those three things. Here is the routine we give our own customers, step by step.
The first hour: what to do as soon as the bouquet arrives
The first hour decides more than the next five days. A bouquet that has spent time in wrapping, in a car or on a cold street needs water quickly. Take off the wrapping and any cellophane, but if the bouquet is tied with a ribbon or twine and arranged in a spiral, you can leave the tie in place so the shape holds in the vase.
Cut the stems with a sharp knife or secateurs, not household scissors, which crush the vessels the flower drinks through. Remove 1-2 cm at a sharp angle, which gives a larger drinking surface and stops the stem sitting flat on the bottom of the vase. For woody stems such as roses or hydrangeas, the cut should be clean and the flowers should go into water within seconds.
Strip every leaf that would end up below the waterline. Leaves in water rot within a day or two, feed bacteria and turn the water cloudy, and that bacteria clogs the stems faster than anything else. Leave the upper leaves on: they help the flower draw water upwards and they make the bouquet look alive.
Water, vase and flower food
Start with a vase that is clean in the real sense, washed with hot soapy water and rinsed well. A vase that looks clean but held flowers last week still carries bacteria on its walls. Fill it with cool or lukewarm water to about two thirds of the stem length for most flowers; bulb flowers such as tulips and hyacinths need only a few centimetres of cold water.
If your bouquet came with a sachet of flower food, use it, dissolved in the right volume of water. It contains sugar to feed the flowers, an acidifier that helps stems drink and a mild antibacterial agent. Home remedies like sugar alone actually feed bacteria faster than they feed the flowers, so without the sachet, plain clean water changed often is the safer choice.
Change the water every one to two days, rinsing the vase each time, and re-trim the stems by a centimetre. This one habit adds more days to a bouquet than any other. We explain the schedule for different flowers in our article on how often to change the water in a flower vase.
Bouquets we can deliver
Where to put the vase
Flowers last longest in a cool room, ideally 18-20 degrees Celsius, out of direct sun and draughts. Warmth speeds up everything: the flowers breathe faster, open faster and fade faster, and bacteria in the water multiply. A bouquet on a sunny windowsill can lose half its vase life compared with the same flowers on a table in the shade.
In Russian flats the main problem is the heating season. Radiators run from autumn to spring, and the air above them is hot and dry. Customers often put a bouquet on the windowsill because it is the brightest spot, right above the radiator, and are puzzled when the roses droop on day three. Our guide on keeping flowers fresh in a warm Russian apartment covers this in detail.
Keep flowers away from the fruit bowl as well. Ripening apples, bananas and pears release ethylene, a gas that makes flowers age and drop petals early; carnations and alstroemeria are especially sensitive. Overnight, many florists move their own bouquets to the coolest room in the flat, such as a glazed balcony in mild weather, and that alone adds a few days.
Care by flower type
Roses like deep water and a fresh angled cut every second day. If a rose head droops while the petals still look fresh, the stem is usually blocked by air; re-cut it under water or give it a short hot-water dip and then deep cool water, and it often straightens within a few hours. Remove the outer guard petals only if they are bruised; they protect the bloom.
Tulips keep growing in the vase and bend toward light, so turn the vase daily and give them cold, shallow water. Do not mix freshly cut daffodils with other flowers right away: their sap harms neighbours, so let them stand on their own for several hours first. Chrysanthemums and carnations are the long-livers of any bouquet; just keep their water clean and remove the occasional faded head.
Hydrangeas drink through their petals as well as the stem. If the heads go limp, submerge the whole flower head in cool water for 30-40 minutes, then return it to the vase. Peonies open fast in a warm room, so if you want to slow them down, keep them cool and out of the sun. Lilies last well, but remove the pollen-covered anthers as the flowers open to protect the petals and your tablecloth.
Sending a bouquet that starts its life fresh
How long flowers last at home also depends on how fresh they were at the start. When we prepare a bouquet in our shops, the stems are freshly cut and the flowers have been conditioned in water, so the recipient only needs a clean vase. If you are abroad and want to send flowers to Russia, choose a bouquet in the Bouquets catalogue; city delivery costs 500 RUB, and express delivery in large cities arrives 1-2 hours after the order is confirmed.
You can also pick an exact time, a time window or pre-order up to 30 days ahead. In Saint Petersburg delivery is around the clock. Payment is online by bank card, SBP or Yandex Pay, and foreign bank cards are accepted. A card with your text is free, and many customers add a line of care advice for a recipient who rarely buys flowers. For any questions, call 8 (812) 507-67-05. We deliver bouquets across Russia in 1–2 hours.
Frequently asked questions
How long should a bouquet of cut flowers last?
With clean water, regular stem trimming and a cool room, most mixed bouquets last about a week. Chrysanthemums, carnations and many roses can last up to two weeks.
Does sugar or aspirin keep flowers fresh?
Not reliably. Sugar on its own feeds bacteria in the water, and aspirin has little proven effect; flower food from a sachet or frequent water changes work far better.
How often should I change the water?
Every one to two days, rinsing the vase each time. Re-trim the stems by about a centimetre whenever you change the water.
Should I put cut flowers in the fridge overnight?
A cool room works for most people. Keep fruit and vegetables away from flowers, because the ethylene they release makes blooms fade faster.
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