From Ground: First, ensure that the common chickweed plant is well-watered to dampen down the soil. This will make removal easier. Then, with a gardening spade, dig a wide circle around the plant, making sure 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: For potted common chickweed, the plant should be watered well, then gently tip the pot sideways and apply gentle pressure on the sides to ease out the plant. Make sure to handle the root system gently to minimize damage while removing.
From Seedling Tray: To remove the common chickweed plant from a seedling tray, water the tray to soften the compost. Gently hold the top of the seedling and use a dibber or suitable tool to ease the seedling upwards and out. Handle the seedlings by the leaves to avoid damaging the stem.