From Ground: Start by watering the broadleaf cattail plant to make the soil softer. Then, use a spade or a shovel to dig a trench around the plant, taking care not to damage the plant's roots. Maintain good distance from the stem to ensure you don't accidentally cut into the root ball. Once the trench is dug, slide the spade under the root ball and lift the plant carefully.
From Pot: If the broadleaf cattail is in a pot, water the plant thoroughly before moving on to the transplanting process. This will keep the soil together around the root ball. Turn the pot sideways, hold the plant by its base, and tap the bottom of the pot to slide the plant out.
From Seedling Tray: If broadleaf cattail is a seedling, it is important to handle it with utmost care during removal. Wet the soil in the tray, then carefully lift the seedling by the leaves to avoid harming the roots.