From Ground: First, water the lyall's angelica 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 plant from its original location.
From Pot: Water the lyall's angelica plant thoroughly. Gently tip the pot on its side and carefully slide the plant out, supporting the root ball with your hand. If the plant is stuck, you can gently tap the sides of the pot to loosen the soil.
From Seedling Tray: Water the tray to make the soil moist. Use a trowel or your hand to gently lift the seedlings, ensuring you keep as much of the root system and surrounding soil intact as possible.