Actinidia kolomikta – Arctic Kiwi, Silver Vine

General Information: Much less vigorous than Actinidia arguta, but more cold hardy, to at least -35°F! The fruits, which are similar to those of A. arguta but usually smaller, begin ripening here in late August. Plants may perform better in partial shade in warm climates (Zones 7 and up). These plants are sometimes grown in fruit trees or small ornamental trees to provide shade, support for the vines, and extra fruit. Said to prefer a neutral pH although they do well here in our acidic soil. A choice “edimental,” the male vines naturally develop striking pink and white leaf variegation in late spring. We have noticed that a silvery stripe tends to form around leaf edges in our full sun plantings, hence the occasional name “Silver Vine.” These plants grow rapidly, twining around any branches or poles they can find, reaching 20 feet at maturity. They will tolerate hard prunings every other year if necessary.

Edible Qualities: Fruits are similar in flavor to Actinidia arguta (Hardy Kiwi) and can be used the same way. Like A. arguta, these fruits do not have a very long shelf life and dehydration or freeze drying is widely considered the best method of preserving them.

Cultivation Details: This species is dioecious. A male and female plant are both required to produce fruits. One male plant can pollenize up to eight female plants. Males and females should be planted within 25 feet of each other. Consider growing on a trellis, pergola, fence line, or in mature fruit trees. Note that this species can grow quickly and may be able to out-compete small trees.

Growing Requirements: Plant in full to part sun. For optimal fruit production and ornamental value, provide at least 6 hours of full sun. Prefers moist, well-drained soil. Does not tolerate standing water.