This butterfly is a low flier so adults prefer to nectar from shorter smaller flowers such as clovers, Sheperd's Needle, and asters.
This butterfly can be found in most open sunny areas where nectar plants are available.
Eggs are laid singly on the hostplants, caterpillars feed mostly on the buds and flowers.
Eastern Tailed Blues can be found in flight from April to November in the northern part of their range and February to November in the southern parts.
This species overwinters in Iowa as a caterpillar.