Fill a nursery flat with equal parts of sand and seed-starting mix. The mixture should be combined thoroughly and moisted until saturated. Set the flat aside to drain until it is slightly moist.
Sprinkle the hardy kiwi seeds on the surface of the soil and cover them with a quarter-inch layer of sand. Mist the sand with water from a misting bottle.
Slide the flat into a plastic bag or cover it with plastic wrap. Place it in the refrigerator.
Remove the flat from the refrigerator after two weeks and leave it in an area that receives bright, indirect sunlight. The hardy kiwi seeds will germinate within one month.