From Ground: Start by watering the grassleaf arrowhead plant to dampen the soil around it. Using a spade or trowel, carefully dig a wide trench around the plant, taking care not to damage the root ball. Gently work the spade beneath the root ball, and lift the plant out from its original location.
From Pot: Begin by watering the plant in the pot. Place your hand on the top of the soil with your fingers spreading around the stem of the grassleaf arrowhead plant. Invert the pot and gently tap it to loosen the plant. It should slide out, keeping the root ball fine.
From Seedling Tray: If the grassleaf arrowhead plant is in a seedling tray, water it first. Then pinch the bottom of the individual cell to push the seedling upward. Be careful to hold it by the leaves and not the stem to avoid causing damage.