Bi-annual flowers are flowers that sprout in year one, typically with a lot of green leaves near the ground and on the second year, they will flowers, whereafter they will die. Typically bi-annual flowers are worth the wait, as their flowers are often large and flashy. With many bi-annuals, there is a good chance that they will survive and bloom again in year 3, if you cut away the defloured flowers before they spread their seeds.
