From Ground: First, wear your gloves and water the japanese holly plant to dampen the soil. Then, using your shovel or trowel, carefully dig a wide trench around the plant, ensuring to not damage the root ball. Gradually work the tool under the root ball to lift the plant from its original location. Be gentle as you don't want to disturb the roots more than necessary.
From Pot: Water the plant first to ensure the soil is moist. Next, gently tip the pot sideways, holding the japanese holly at its base. Apply pressure to the pot's bottom and sides until plant and root ball slide out. Avoid pulling the plant as this can break the stem or damage the roots.
From Seedling Tray: If you are transplanting an japanese holly seedling, first water the tray. Hold the seedling by its leaves, as the stems are still very delicate. Push up from the bottom of the tray and gently remove the seedling without harming the tiny roots.