Additives for cut flowers 4873355 207683513 2008-04-23T19:56:22Z 78.16.223.200 it has been discovered that glucose is better at prolonging the life of cut flowers than commercial plant food, this was found during the Junior Certificate biology experiment in St. Mary's College. [[Image:Fluorescent fower display.JPG|thumb|right|280px|Flower display in a US supermarket.]] '''Additives for cut flowers''' are substances added to water, intended to extend the viability of the [[flowers]]. Once flowers are removed from the [[plant]] they continue to grow slowly, but have a diminished capability of receiving the [[nutrients]] that are vital for their survival. There are different techniques of ensuring that fresh cut flowers remain alive for the longest amount of time. [http://www.rsnz.org/publish/nzjchs/2002/034.php] ==Sterilization== According to [[James C. Schmidt]], a [[Horticulture|horticulturist]] at the [[University of Illinois at Urbana-Champaign|University of Illinois]], originally putting cut flowers in a [[Sterilization (microbiology)|sterilized]] vase is important to extending the life of the flowers. Vases can be cleaned using a household dish detergent or a combination of water and [[bleach]]. Using these [[disinfectants]] insures that there will not be any [[bacteria]] growing within the vase that could potentially cause the plant to [[wilt]] and die at a faster rate. Schmidt also claims that cutting the flowers diagonally with a sharp knife under running water insures that they can immediately take up fresh and clean water. Re-cutting the [[Plant stem|stems]] periodically will insure that there is a fresh surface from which the stems can take up water. This will allow the flowers to last even longer. ==Additives== According to the [[Brooklyn Botanical Garden]], different additives can be used to prolong the lives of fresh cut flowers. Experiments were performed with various substances mixed with water, including [[aspirin]], [[multivitamin|vitamin pills]], [[vinegar]], [[pennies]], and flower food to test their effect on cut flowers' lifespans. Each plant was placed in the same environment and the same type of plant was used in each vase. This research found that the best additive for flowers was the retailer-provided "flower food" that is usually given with a bouquet. Plants are known to thrive in an environment where there are few bacteria, plenty of food for [[energy (biology)|energy]], and water uptake is encouraged. Flower foods contain an [[acidifier]] which helps to adjust the water's [[pH]]. With a lower pH the water and food conducting system within the flower can work at maximum efficiency. The [[sugar]] in the food will be used by the plant as an energy source, which had been lost when the flower was cut away from its root. With these [[nutrient]]s the plant will be able to fully develop. Finally, there are stem unpluggers that will make sure that the flower can easily take up water and nutrients that can later be used to take care of the needs of the rest of the plant. This combination gives the fresh cut flowers everything that they need to survive longer. When tests were carried out in St. Mary's College C.S.S.p, Rathmines, Dublin, however, results showed that glucose was more effective at prolonging the life of cut flowers than the commercial plant food. The experiment was carried out as part of the Junior Certificate Science Examination set by the Irish State Examinations Commission 2008. ==External links== * [http://www.bbg.org/gar2/topics/design/2003sp_cutflower.html Cut-Flower Care — How to Make Your Fresh-Cut Flowers Last] by Rose G. Edinger, Brooklyn Botanical Garden, Spring 2003, retrieved [[October 21]], [[2006]] * [http://www.jennys-flowers.com/flower-care.html Care of Cut Flowers] <s><s></s></s> [[Category:Horticulture]]