From Ground: Begin by watering the wild mustard plant to dampen the soil, making it easier to move. Use a spade or shovel to dig a wide trench around the plant, ensuring not to disturb the root ball. Work the spade under the root ball and carefully lift the plant from its location.
From Pot: First, ensure the plant's soil is damp by watering it. Turn the pot sideways, hold the wild mustard plant gently, and tap the bottom of your pot as you tilt it to slide your plant out with its soil and root ball intact. Handle the plant with care to avoid damaging the roots.
From Seedling Tray: Water the tray and use a trowel or a similar tool to gently prise out the wild mustard seedlings, minimizing disturbance to the roots. Handle the seedlings by their leaves to avoid causing any damage to the stem or roots.