Begin by considering the condition of the flowers themselves. If the blooms are already fully open, the petals are browning, or the stems feel soft or mushy, it is a sign to choose a hardier variety instead.
One of the simplest ways to gauge a flower's staying power is to look at its stem. When in doubt, opt for thick, sturdy stems — they tend to promise a longer vase life — and be wary of thin or weak stems, which are often more delicate and fade more quickly.

