self-sterile

It is self-sterile and must be planted with some other variety to set fruit well.

Oneida is one of the rare sorts with erect stamens and yet self-sterile.

Those which are self-sterile or showing no fruit on covered clusters.

By the flower being self-sterile with its own pollen, as in the crimson flax.

The grapes ripen unevenly, the flowers are self-sterile and in some locations it is a shy bearer.