Plant Issai Mini Kiwi in well-drained soil with full sun exposure. Space plants 10 feet apart. Ensure soil pH is between 5.5 and 7.0. Water regularly, keeping soil consistently moist but not waterlogged. Fertilize in early spring with a balanced fertilizer. Prune in late winter to remove dead or weak growth and to shape the plant. Provide a trellis or support for vines to climb. Protect from frost in early spring. Harvest fruit in late summer to early fall when they are soft and sweet.