From Ground: start by ensuring the soil around the wych elm is not too dry or too damp to work with. Then, using your spade or shovel, dig a wide trench around the plant that is deep enough to keep the root ball intact. Gently lift the plant from the soil using the spade, ensuring you do not cut or damage the roots.
From Pot: Water the plant well before removing it from the pot. Turn the pot sideways, hold gently the plant stems and tap the bottom of the pot to loosen the wych elm. If necessary, use a transplanting fork to carefully tease the roots if they are pot-bound.
From Seedling Tray: If you're transplanting a seedling, grip it gently at the leaves (not the stem) and use a pencil or dowel to push up from the bottom of the tray cell or pot to dislodge the seedling. Then, carefully lift it out, supporting the root ball.