From Ground: Initially, water the christmas bush plant to soften the soil. With a shovel, dig a wide circle around the plant making sure you're far enough to not damage the root system. Slowly go deeper while maintaining the circle until you can safely lift the plant out of the ground with a substantial amount of roots intact.
From Pot: Water the christmas bush plant adequately. Turn the pot sideways, hold the plant gently by the base, and tap the bottom of the pot to slide it out. Avoid pulling the plant as it could damage the root system.
From Seedling Tray: Use a small trowel or your finger to carefully lift the christmas bush seedlings from the tray. Be gentle to not damage the sensitive young roots. If the roots are entangled with other seedlings, try to tease them apart very gently.