
Genus with showy flowers suited mainly to bumblebees and larger bees; low nectar and pollen value for honey bees.
An iris flower works like three separate pollination tunnels: the bee lands on an outer tepal and crawls in beneath the style branch above it to reach the nectar at the base. This structure suits large bumblebees and solitary bees; the honey bee enters the flower less often and can reach only part of the nectar. Pollen is collected in small amounts.
It makes no significant contribution to honey.
The early-flowering bulbous species offer bees a little food at the very start of spring. The rhizomes contain substances harmful to grazing animals; there is no known problem as far as honey is concerned.