From Ground: Water the octopus cactus to dampen the soil, making it easier to dig. Carefully dig a wide circumference around octopus cactus with the shovel, going deep to include as much root structure as possible. Gently pry the plant from the soil, cradling the root ball to keep it intact.
From Pot: Thoroughly water octopus cactus to ease root ball removal. Tilt the pot on its side and gently tap it to loosen the edges. Gradually slide octopus cactus out, supporting the plant and the soil.
From Seedling Tray: Moisten the soil to reduce root disturbance. Use a hand trowel or similar tool to carefully lift octopus cactus from its compartment, making sure to bring along the root system.