From Ground: First, water the fetid dogweed plant to dampen the soil. Then, dig a wide trench around the plant using a shovel or spade, ensuring the plant's root ball remains intact. Carefully work the spade under the root ball to lift the fetid dogweed from its original location.
From Pot: Water the fetid dogweed to make removal easier. Turn the pot sideways, support the fetid dogweed with one hand, and gently tap the bottom of the pot to loosen the soil and root ball. Slide the fetid dogweed out, taking care not to damage the roots.
From Seedling Tray: Water the trays to allow the roots to slip out easily. Use a gardening trowel or a similar tool to gently lift the fetid dogweed from the seedling tray, being cautious not to break the delicate roots.