From Ground: First, water the lady's mantle plant to dampen the soil. It makes the removal more manageable and less traumatic for the plant. 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 plant from its original location.
From Pot: Water the pot well before you begin – wet soil will cling to the roots, protecting them from drying out. Hold the pot upside down while gently pulling on the base of the plant. If the plant doesn’t slip out on its own, squeeze the pot to loosen the soil.
From Seedling Tray: Gently push the seedling through the hole from the bottom of the tray using a pencil, preserving as much root as possible. Avoid pulling on the stem of the seedling to not damage the plant.