Clark Male Kiwi is a male cultivar of Actinidia arguta, the hardy kiwi vine, selected from a USDA breeding program in Chico, California. Unlike female vines that bear the small, sweet fruit, Clark Male serves as a robust pollinator for female Actinidia arguta plants in your garden. Thriving in full sun and heat, this deciduous vine grows well across temperate zones and handles both drought and humidity with ease, making it a low-maintenance structural element in the edible landscape.
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Clark Male Kiwi originated from decades of careful selection at the USDA's Chico station, where Dr. Milbocker and colleagues developed superior pollinators for commercial and home kiwi cultivation. This variety outperforms other male Actinidia arguta selections as a reliable pollen source, ensuring consistent fruit production on female vines planted nearby. The vine's tolerance for heat and humidity, combined with its drought resilience once established, makes it an unusually adaptable choice for regions where other kiwi cultivars struggle.
Clark Male Kiwi serves a single, essential purpose: pollination. Plant it within 50 feet of female Actinidia arguta vines to ensure robust flowering and heavy fruit set. While the male produces no edible fruit, it creates abundant pollen from spring flowers that bees and wind carry to female plants, triggering the production of the sweet, bite-sized kiwis gardeners grow for fresh eating or preservation.
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Transplant rooted vine cuttings or nursery-grown plants into the garden in spring after the last frost. Choose a location in full sun with a sturdy trellis or support structure already in place. Space the vine at least 8-10 feet from female Actinidia arguta plants, close enough for effective pollen dispersal. Water well at planting and keep the soil consistently moist for the first season to establish a strong root system.
Prune Clark Male Kiwi after flowering ends in late spring to control its vigorous growth and shape the vine to your trellis. Remove any dead or crossing canes, and thin crowded growth to open up the canopy and improve air circulation. Light summer pruning helps manage size without reducing next year's pollen production. In winter, cut back any growth that has strayed beyond your support structure.
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“Clark Male Kiwi emerged from a targeted kiwi improvement project at the USDA's Chico, California research station. Scientists, including Dr. Milbocker of the Diamond Springs Station in Virginia Beach, Virginia, systematically evaluated Actinidia arguta selections to identify superior pollinators. Clark Male was chosen alongside another early-blooming male cultivar (74-32) for their exceptional ability to fertilize female plants. When Edible Landscaping began working with Dr. Milbocker, they introduced Clark Male to home gardeners, transforming it from a research specimen into a practical tool for anyone growing hardy kiwis at home.”