Fact or Fiction?: Vodka and Citrus Sodas Keep Cut Flowers Fresh (2024)

The day after Valentine's Day, flower bouquets from sweethearts around the world begin to fade. A rose's vibrant red dulls to dried-out brown, and flowers begin to droop. Some say adding a citrus-flavored soda, such as 7-Up or Sprite, or an alcohol like vodka to the vase of water will lengthen the time these flowers remain beautiful.

According to floriculturists, they are right; if the mixture of soda and water is in the correct proportion, a bouquet will remain bright, because the combination provides the flowers with the water and food they need. "The 7-Up formula works really well," says Susan Han, a professor in the plant, soil and insect science department at the University of Massachusetts Amherst. Vodka also works as a flower preservative by interfering with the plant's ripening process but it is less practical to use.

Cut flowers, like those in a bouquet, are separated from their roots and no longer make food for themselves. Instead, their environment provides everything necessary to keep them fresh. Slightly acidic water travels up the stems to the flowers more rapidly than neutral or basic water, keeping the flowers hydrated and fresh. But in addition to water, plants need sugar for food.

This necessary combination of acidic water and sugar describes 7-Up or Sprite, says William Miller, a professor of horticulture at Cornell University. One can of either is loaded with citric acid that lowers the pH (increases the acidity) of the soda and contains about 38 grams of sugar. But, while water and sugar keep the flowers fresh, this mixture also encourages bacterial growth, which can harm the flowers. "So add bleach," Han says. A little bleach kills the bacteria without damaging the flowers.

When brewing this concoction, which is essentially what flower food packets hold, Miller and John Dole, a professor of horticulture at North Carolina State University, recommend one can of water for every can of soda added to the vase. Han, however, prefers a three-to-one ratio of water to soda, along with a few drops of bleach to kill the bacteria.

Vodka has a different effect on a bouquet of flowers: When added to a vase, it preserves them, probably by inhibiting ethylene production, Dole says. Ethylene is a ripening gas emitted by plants that helps them mature. Inhibiting this gas could slow wilting. Vodka, however, is not a very viable preservative. Plantslike many peoplecan only tolerate small concentrations of alcohol, up to eight percent, Dole explains, and 80-proof vodka from the liquor store is 40 percent alcohol. To be effective rather than harmful, the liquor would need to be dilutedInstead, growers use a more effective preservative, silver thiosulfate, which also inhibits ethylene, he says.

Other flower care strategies can help a bouquet stay beautiful. When the flowers arrive home, half an inch to an inch of the stem should be cut off. This prevents air from being sucked into the stem and creating a blockage in the plant's uptake system, Miller says. Also, removing the ends physically removes any bacteria that might be growing there, he adds. Roughly every three days another inch should be cut from the stem bottoms and the bouquet should be placed in a clean vase. "If you wouldn't drink out of your vase, don't be putting flowers in it," Dole advises. After fresh food and water are added to the clean vase, the bouquet should be placed in a bright, cool spot.

No matter what efforts are made, of course, over time the flowers will slowly die. "It is perfectly okay to go through and pluck out the dead flowers," Miller says. That way the remaining bouquet looks bright and pretty.

Sodas like 7-Up and Sprite may keep flowers from a sweetheart fresh but what keeps sweethearts fresh is not yet known to sciencethough vodka and soda might be key ingredients there, too.

Fact or Fiction?: Vodka and Citrus Sodas Keep Cut Flowers Fresh (2024)

FAQs

Is vodka good for fresh cut flowers? ›

Vodka has a different effect on a bouquet of flowers: When added to a vase, it preserves them, probably by inhibiting ethylene production, Dole says. Ethylene is a ripening gas emitted by plants that helps them mature. Inhibiting this gas could slow wilting. Vodka, however, is not a very viable preservative.

What soda do you put in cut flowers to keep them fresh? ›

Soda. Pour about 1/4 cup of your leftover soda into the water in a vase full of cut flowers. The sugar in the soda will make the blossoms last longer. Use clear soda if you have clear vase, like Sprite or 7-Up.

What kind of soda makes flowers last longer? ›

If you don't have vinegar and/or sugar, lemon-lime soda mixed with the water will do the same thing. Step 4: Remove all lower leaves from flowers so there won't be any in the water. Step 5: Cut 1 to 2 inches off the stems at an angle while they are under water.

How do you make flowers last longer with vodka? ›

Vodka: Add a few drops of vodka (or any clear spirit) to your vase of flowers. Vodka is said to have a different effect on flowers. The spirit's ability to inhibit ethylene production, a ripening gas that helps plants mature, slows the wilting of the flowers.

What is the best way to keep cut flowers fresh the longest? ›

Fresh, clean water will keep your cut flowers alive longer. Remove the flowers from the vase every two or three days, rinse the vase out, and fill it with fresh water. If you have dying foliage, be sure to remove it. Placing your arrangement in the fridge overnight will also help extend your flower's life.

What do you put in fresh cut flowers to make them last longer? ›

Dissolve 3 tablespoons sugar and 2 tablespoons white vinegar per quart (liter) of warm water. When you fill the vase, make sure the cut stems are covered by 3-4 inches (7-10 centimeters) of the prepared water. The sugar nourishes the plants, while the vinegar inhibits bacterial growth.

Does Coca Cola make flowers last longer? ›

Mix a ¼ cup of soda into the water and watch how your blooms stay perky with a sugary beverage, just like a kid with a can of Sprite. In fact, that's the type of soda recommended, since a dark drink like co*ke or Pepsi will turn the water cloudy.

Does co*ke make flowers last longer? ›

Soda. Don't throw away those last drops of soda! Pour about 1/4 cup into the water in a vase full of cut flowers. The sugar in the soda will make the blossoms last longer.

Does baking soda make cut flowers last longer? ›

Any of the fungicide products (bleach, baking soda, vodka) combined with soda or sugar and some form of acid do a good job of keeping flowers fresh.

Does putting a penny in a vase help flowers? ›

Dropping a copper penny into the vase. The reason pennies are considered a smart way to keep flowers alive longer is because copper is a fungicide, so it naturally kills off those pesky bacteria and fungi that are trying to camp out in your flowers' vase and shorten the life span of your stems.

Is Coca Cola good for flowers? ›

In the end Coca-Cola is very bad for plants and causes for them to dry up faster, die quicker, grow smaller and not to grow as many leaves. My experiment showed that Coca-Cola is not good for plant growth.

Does Coca Cola help flowers? ›

The absorption of these nutrients encourages more rapid growth in the plant. Therefore, pouring soda on plants, such as Classic Coca Cola, is inadvisable. co*ke has a jaw dropping 3.38 grams of sugar per ounce, which would certainly kill the plant, as it would be unable to absorb water or nutrients.

Can I put bleach in my flower water? ›

Did you know? Adding Clorox® Disinfecting Bleach to flower vase water keeps flowers healthy and last longer! When microorganisms multiply in plain vase water, they block the flower stem and make it hard for the stem to absorb water for nutrients — causing wilt and odors!

Should you put sugar in flower water? ›

Sugar increases fresh weight of the flowers and prolongs the vase life. Use 0.5 - 1% Floralife (concentration of sugar not specified). 2% sugar solution doubles the vase life of the cut inflorescence. Some sugar in the vase solution increases the number and size of open flowers as well as prolongs the vase life.

Does apple cider vinegar keep flowers fresh? ›

Mix 2 tablespoons of apple cider vinegar with 2 tablespoons of white sugar and add the mixture to the water before replacing the plants. 5. If your flowers start to wilt, place them in warm water for 30 minutes. This trick only works with non-bulb flowers, but it can perk up sagging stems in a pinch.

Will refrigerating cut flowers make them last longer? ›

To keep your bouquet strong and healthy, try this super-simple flower tip: Store the flowers in the refrigerator overnight. It'll help slow down the process of water loss and keep your blooms looking crisp. To store the flowers properly, fill a vase about ¾ full with water, and then put the flowers in the vase.

Is cold water the best way to keep cut flowers longer? ›

Along the way, they debunk one myth after another. One of the most surprising findings is that freshly picked flowers should be placed in cold water, not warm. With a few exceptions, warm temperatures rob the flower of food and water, often resulting in dehydration.

How do you keep cut flowers fresh without water? ›

How can I keep flowers fresh overnight without water?
  1. Put several ice cubes on the flower arrangement. ...
  2. Add a few drops of glycerine to the water; this will keep it moist and fresh for a few more hours.
  3. Spray some hairspray on your arrangement; this will act as glue and hold the flowers in place.
29 Jan 2022

Is milk good for plants? ›

As strange as it sounds, you can actually water plants with milk. Even if you can't drink it yourself, it makes for a stellar fertilizer. According to Gardening Know How, expired milk is loaded with calcium, protein, vitamins, and sugars that can help give your plants an added boost and help them grow big and strong.

Why does Sprite make flowers last longer? ›

The theory is that the sugar in the Sprite acts as flower food, which in turn helps the flowers stay fresh and keep drinking water.

Does lemonade make cut flowers last longer? ›

The Great British Florist suggests that you can make flowers last longer by simply adding a small glass of fizzy lemonade to the water. “The mix of acid and sugar helps to stop bacteria and therefore helps the life of your flowers.”

Does 7-Up make flowers last longer? ›

Citrus soda, such as 7 Up and Sprite, can effectively make flower water both acidic and sugary, Susan Han, a UMA plant physiologist, told Scientific American. Han recommends concocting a solution of one part soda and three parts water, along with a few drops of microbe-killing bleach.

Does Epsom salt help cut flowers last longer? ›

Adding a pinch of Epsom salt once or twice a month will greatly help them to absorb nutrients, making cut flowers stay fresh for longer and helping plants and herbs with healthy growth.

Does dish soap make flowers last longer? ›

But it's not all bad news. You can stave off bacteria in your bunch with simple techniques, like rinsing and refilling your vase and clipping your stems. Some florists even swear by adding a few drops of bleach or dish soap to the water, according to Reader's Digest.

Does ibuprofen help keep flowers fresh? ›

Brands such as Bayer are excellent for this easy at home gardening tip but make sure you steer clear of substitutes such as ibuprofen and acetaminophen. Those types of pain relievers will kill the flowers due to their chemical composition.

What do florists spray on flowers? ›

The most common antibacterial products used for fresh flowers are bleach and spirits, such as vodka or gin.

Should flowers touch bottom of vase? ›

The rule of thumb for traditional arrangements is that the length of the flower stems should be no more than one and a half to two times the height of a vase.

What household item keeps flowers fresh? ›

Sugar nourishes plants, whilst vinegar prevents bacterial growth. Dissolving 3 spoons of sugar and 2 spoons of white vinegar of mild warm water and placing flowers until the stems are covered 3 – 4 inches will keep the arrangement looking fresh longer.

Is hair good fertilizer? ›

Human hair could be used instead of chemical fertilizers for some plants like lettuce, new research in a horticultural journal suggests. The hair, which is manufactured into cubes from barbershop and hair-salon waste, provides nitrogen for plants as it decomposes, just as natural-gas-derived sources like ammonia do.

Do slugs like co*ke? ›

Apparently, slugs don't like Coca-Cola, possibly because it's so very acid (the pH of freshly opened Coca Cola is about 2.5: extremely acid). Beer does a better job of trapping slugs (see Attracting Slugs With Beer: Myth or Reality?), but even beer is a very poor slug control method.

Is apple juice good for plants? ›

While apples do contain sugar, using unsweetened apple juice on plants will have little negative effect on growing plants but probably no benefit either. Citrus juices such as orange or grapefruit all contain sugars in the form of disaccharides and polysaccharides, but citrus peels are often included in fertilizers.

Is coffee good for plants? ›

Coffee grounds (and brewed coffee) are a source of nitrogen for plants, producing healthy green growth and strong stems. Coffee also contains calcium and magnesium — both of which are beneficial to plant health. To use coffee as a plant fertilizer, you'll need to dilute it. It should look like weak tea.

Does Sprite help dying flowers? ›

Sprite — Sprite makes the water more acidic, which means it can travel up the stem of the flower more quickly. Also, the sugar serves as food for the flower.

Is white wine good for plants? ›

Fertilize Plants

Though it may sound counter intuitive, you can actually use your leftover wine to fertilize your plants. Wine has nitrogen, which makes a great addition to your composting bin.

Is hydrogen peroxide good for cut flowers? ›

Jill says that the peroxide kills germs in the vase and on the stems that would encourage bacteria to grow in the water. The bacteria shortens the lifespan of the cut flowers. Plus, hydrogen peroxide has an extra oxygen molecule in it and that, in small amounts, is good for plants.

What is the best time of day to cut flowers? ›

Early morning is the ideal time to cut fresh flowers. The flowers have had the benefit of cool night air and morning dew. Their stems are filled with water and carbohydrates and so are firm to the touch. As the day warms up, flowers gradually dehydrate.

Is vinegar or bleach better for flowers? ›

Sugar and apple cider vinegar is a quick fix to make flowers open up quickly, but change that water daily. Don't put flowers in bleach. Just don't.

Is sugar water good? ›

Added sugar is unhealthy when consumed in excess. However, liquid sugar may be especially harmful. Research shows that getting sugar in liquid form is much worse than getting it from solid food. This is why high sugar beverages like soda are among the worst things you can put into your body.

What happens if you give a plant sugar water? ›

Not only are plant roots unable to take in sugar, giving them sugar dissolved in water even blocks the roots from absorbing water. And a plant that does not get water wilts and eventually dies. Plants do photosynthesis on their own, self-regulating the amount of sugar they produce to grow.

Should I refrigerate flowers? ›

Keep flowers as cool as possible, but avoid putting them in your fridge, if you can. Florists' coolers range from 33° to 40°F, so your fridge likely won't be cool enough and any fruit or vegetables could emit ethylene gas, which shortens the life of cut flowers.

Does putting flowers in the freezer preserve them? ›

Fresh Flowers & Roses should not be placed in either the refrigerator or the freezer! The Refrigerator generally hosts a variety of fruits & vegetables that emit ethylene gases which can shorten the life or even kill your fresh flowers & roses. The Freezer is simply too cold!

Does aspirin keep cut roses fresher longer? ›

Yes, it can! Crushing an aspirin tablet into the water of the vase will help keep flowers fresher for longer. Simply place aspirin tablets on a plate and crush them by using the back of a spoon. This will form a powder that you can pour into your vase of roses.

What happens if you give your plants vodka? ›

Those paperwhites and other daffodils sure could use a drink -- a little whiskey, vodka, gin or tequila could keep them from falling over. A new Cornell study finds that a touch of booze is a great way to keep certain houseplants from getting too tall by stunting their growth.

Can you preserve fresh flowers in alcohol? ›

This three-step process consists of soaking flowers in ethyl alcohol, then soaking them in polypropylene glycol, followed by a rinse with ethyl alcohol. Some kinds of flowers processed in this manner retained their natural color and texture for at least 6 months.

Will vodka hurt plants? ›

Can I use alcoholic beverages in the garden? Alcoholic beverages contain ethanol, but they can also contain sugars and other organic matter that can foster the growth of bacteria and fungi that can kill plants. Thus, it is not recommended to use alcoholic drinks on plants.

Can you give vodka to plants? ›

Plants produce ethylene, a ripening gas that promotes maturation. Vodka stunts ethylene production, thereby helping flowers stay wilt-free longer.

How do you get rid of gnats from plants? ›

Vinegar mixture: Fill a shallow saucer with 2-3 drops of liquid dish soap and a cup of white vinegar. Place the bowl near your plant — the gnats will be attracted to the solution and fall into the trap. Keep repeating the process until all the gnats are gone.

Is vinegar good for plants? ›

Though vinegar can be fatal to many common plants, others, like rhododendrons, hydrangeas and gardenias, thrive on acidity which makes a bit of vinegar the best pick-me-up. Combine one cup of plain white vinegar with a gallon of water and use the next time you water these plants to see some amazing results.

Does baking soda make flowers last longer? ›

Any of the fungicide products (bleach, baking soda, vodka) combined with soda or sugar and some form of acid do a good job of keeping flowers fresh.

Is vodka a preservative? ›

Vodka commonly acts as a preservative. If you throw an ounce of vodka into a syrup, it makes syrup last longer, according to Greenwood.

Does ginger ale keep flowers fresh? ›

Don't use diet soda because there's no sugar and make sure it's a clear variety, like Sprite. Colas or even ginger ale won't work for this!

How do I get rid of spider mites? ›

Use Rubbing Alcohol

Kill spider mites by combining a mixture of 1 cup of rubbing alcohol and 4 cups of water, then spray the solution on your plants. Cover the stems, flowers, and foliage thoroughly. Rubbing alcohol kills spider mites by dehydrating them.

How do you treat spider mites? ›

Washing plant foliage using a soft cloth or a forceful spray of lukewarm water can help reduce the spider mite population if done repeatedly. Other control options include treating plants with an insecticide containing permethrin or pyrethrin. Insecticidal soap and horticultural oil are also effective.

Do spider mites live in soil? ›

Spider mites are plant-eating mites that look like tiny spiders and attack more than 180 types of plants. In cool climates they spend the winter resting in soil; in warmer regions they live and feed year-round.

Can I spray rubbing alcohol on my dog? ›

Isopropyl alcohol can be toxic to pets

You shouldn't spray or pour isopropyl alcohol onto your pet's fur or skin in an attempt to kill fleas. This toxic chemical is easily absorbed through the skin, and in large enough amounts it's poisonous to pets.

Can you pour milk on your flowers? ›

Diluted expired milk is great for watering your plants! Calcium is a nutrient essential to plant health.

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