From Ground: Water the buxbaum's sedge thoroughly before beginning to ensure the soil is moist, which helps to keep the root ball intact. Carefully dig around the plant with a trowel or shovel, going wide enough to include the majority of the roots. Gently ease the tool underneath and lever the buxbaum's sedge up to remove it with the root ball as complete as possible.
From Pot: Start by watering the buxbaum's sedge to make the root ball easier to remove. Turn the pot sideways, hold the plant at the base, and gently tap the bottom and sides of the pot to loosen the soil. Ease the buxbaum's sedge out of the pot, taking care not to tug on the stems or leaves harshly.
From Seedling Tray: Ensure the soil is moist before starting. Use a spoon or a small stick to carefully pry the buxbaum's sedge seedling out from its cell. Support the root ball to prevent it from crumbling and handle the young plant delicately.