From Ground: Begin by generously watering the clematis 'Niobe' to dampen the soil, making the removal easier. Use a spade or garden fork to carefully dig around the perimeter of the plant, giving a wide berth to avoid cutting into the root system. Gently work the tool underneath to loosen and lift the root ball out of the ground. Try to keep as much as the root ball intact as possible.
From Pot: Water clematis 'Niobe' thoroughly to ease the transition. Turn the pot on its side gently and tap the bottom to loosen the root ball. With your hand supporting the plant at the base, carefully slide the plant out of the pot while keeping the root ball and soil together.
From Seedling Tray: Water the seedling tray to ensure the soil is moist. Carefully lift the young clematis 'Niobe' plants using a dibber or small tool to ease them out, taking care not to damage the delicate root system.