Like most Actinidia species, the kiwiberry is a perennial, deciduous climbing vine. The alternate leaves are 6-12 cm long and 5-10 cm wide, bright green and lightly bearded in the axils of the veins. Their shape is ovate or oblong, rounded to heart-shaped at the base and abruptly pointed at the top, with usually serrate margins and a long petiole of 3-6-(10) cm.
Most kiwiberries are dioecious, thus separate male and female plants are required for fruiting. The flowers are small, 1.2-2 cm in diameter, occurring singly or in inflorescences of up to 7 flowers in the leaf axils of shoots on 1-year-old canes. The petals range from greenish white to cream and the anthers are dark purple to black.
Flowering in Flanders starts between the end of May and early July and lasts for about 10 days. Fruit is ready for harvest from the end of August to the end of October.