Only older ivy plants flower. Only when the ivy has reached its old age do the flowers appear in autumn. The fruit ripens in spring. Worth knowing about the flowering time of ivy.

Young plants do not flower
Only when the ivy has reached its old age does it begin to bloom. This is the case when the plant is more than ten years old. Young plants only form tendrils and do not flower.
Ivy flowers in autumn
Unlike most native plants, ivy does not flower until September. The umbel-like flowers, which consist of up to 20 individual flowers, appear well into October. Due to the late blooming season, flowering ivy is a good food source for bees, hoverflies, wasps, and other insects that find food scarce in the fall.
The flowers develop into fruits containing seeds in the following spring. The fruits are highly poisonous and must not be eaten under any circumstances. Therefore, flowering ivy plants should not be grown where children and pets live.
Offshoots of ivy can be grown from the fruits. The seeds must be stratified before they can be sown. They are placed in a plastic bag with some sand and stored in the refrigerator for several weeks. However, freshly harvested seeds often germinate even if they are sown immediately. Just don't let it dry out.
tips
Upright growing ivy that does not climb can be propagated from the adult form of ivy. It then forms compact bushes that, depending on the variety, carry a rich bloom.