The female version of sea buckthorn produces small, inconspicuous flowers that are yellow or green in color. The flowers are gathered in groups of one to three and are located in the axis of the leaves. After pollination, small, orange berries are produced on the female plant.

Male plants produce small greenish-silvery flowers. These are usually arranged in clusters along the branches. Its leaves are typically longer and narrower than those of the female. They are also lighter green.

Both sexes have thorns, but male plants tend to have fewer and smaller ones. The pollination of the females takes place with a suitable planting rate and with the help of the wind.