The short answer: not long.
However, exactly how long a bouquet will last is very dependent on the
type of flower, and the temperature. Hot weather will make flowers die more quickly, and colder temperatures sustain the life of the
bouquet longer. And some flowers naturally last longer than others.
Here's a quick list of the shelf life of more common flowers.
1-2 days: the gardenia
3-5 days: tulip, iris, daffodil, lily of the valley, cornflower, peony
5 days to 1 week: roses, anemone,
delphinium, calla, gerbera, snapdragon, freesia, zinnia
1-2 weeks: aster, gladiolus, lilies, tuberose, heather, wax
flower, chrysanthemum
So if you want your bouquet to last,
keep in mind this list of flowers when picking out your floral
arrangements.
Sometimes it's not just the flower you
choose, it's the maturity of the flower that matters the lifespan of your bouquet. Some flowers need to be cut while still in the bud stage. This includes flowers like roses, irises, daffodils and gladiolas. The flowers will then open while in the bouquet to make for a perfect arrangement. But this isn't the case for all flowers. Many need to be completely bloomed before they're cut.
If the length of the bouquet is overly
important to you, consult a good florist. They may be able to help
you pick the perfect flowers.
Now that you have a good idea of how long a bouquet will last without water, next we'll show you how you can extend it's life even further.