Males of this species emerge a week before the females. Adaptations of flowers depend on the type of pollinator on which they depend. They usually have a delicate, sweet scent, and a small, narrow floral tube to fit the tongue-length of that species of bee. For example, snapdragons will only open for a bee of the right weight. They are perching feeders.
Butterflies walk around on flower clusters probing the blossoms with their tongues.
Each flower has a tube of suitable length for the butterfly s tongue. Moths are nocturnal, have a good sense of smell, and are hover-feeders. These flowers are white or pale colors so they are visible at night, and may only be open at night. Birds , especially hummingbirds have good eyes which expecially can see red but poor senses of smell. These flowers are brightly-colored, especially red, but have no smell, and have recurved petals so they are out of the way.