One of the major factors for any bouquet or flower to last longer is how it has been conditioned. Each flower has a different science to it so when your flowers first arrive at your door step, all they need is a bit of pruning and fresh water to perk up. Experts lists the reasons on keeping flowers fresh:
Tips, tricks for upkeep of floral arrangements
Remove the flowers from the box and wrap the bouquet
Fill a vase 2/3rd with room-temperature water.
Empty the entire sachet of Interflora flower food that's provided and stir to mix.
Trim 1 to two inches of the stems at an angle using scissors or a sharp knife.
Place the bouquet into a vase, tweak the arrangement as needed and watch your flowers perk up before your eyes.
How to change water in your flower arrangement:
Water wisely: Since flowers continue to drink water after they've been cut, it's important to keep fresh flowers in water always. Exposing the stem to air, even briefly, can cause the water-absorbing cells to shrivel which can shorten the life of your flowers.
Cut stems: Trim the flower stems at an angle before inserting in water. Cutting the stems at an angle prevents them from sitting flat at the bottom of the vase which can block the absorption of water. Re-trim the stems once every few days.
Prune daily: Look out for dead or loose leaves that may be submerged in water and remove them. Leaving them will cause bacterial rot which can shorten the life of your bouquet.
Avoid heat and drafts: Place your flowers in an area that's protected from excessive heat such as heat-generating appliances like heaters or ovens and direct sunlight
Important information: For those with allergies or sensitivities to flower fragrance, the best non-fragrant options are tropical flowers such as orchids, anthurium, birds of paradise or other tropical varieties
Unwrap the plastic/paper wrapping as soon as possible.
Avoid placing flower arrangements in windowsills and other areas with full sun where flowers can wilt due to overheating. Most flowers will last longer under cool conditions.
Keep your vase filled with water. All flower and foliage stems should be submerged. Flowers stay fresher, longer when they can get a drink!
If your flowers came in a basket or other container with foam, add fresh water every day.
Immediately remove dead or wilting leaves and stems from fresh flower arrangements.
Watch your water. When it gets cloudy it's time to change it out.
How to change the water in your flower arrangement:
First remove any dead or dying flowers from the arrangement.
After carefully removing the good flowers, clean the vase thoroughly with soapy water to remove any bacteria that could cause the fresh flowers to deteriorate even quicker. Be sure to rinse thoroughly.
Replace the water and mix in the flower preservative provided by your florist, according to the instructions on the packet.
For best results, cut stems with a sharp knife at an angle about one to two inches from the bottom. This allows them to better absorb water. Do not use scissors to cut your flowers because they can crush the stems and prevent water absorption.