From Ground: Water the sickle senna plant to dampen the soil. Dig a generous perimeter around the plant using a shovel or spade, ensuring to keep the root ball intact. Carefully slide the spade under the root ball to gently lift the plant out of its current location.
From Pot: Water the sickle senna plant gently to make the soil moist, which makes removal easier. Tip the pot sideways and tap the bottom to loosen the plant. Support the stem with one hand, and with the other, pull the pot away from the root ball.
From Seedling Tray: Use a trowel or your fingers to gently loosen the soil around the seedling. Carefully lift the sickle senna seedling by the leaves rather than the stem to avoid damage. Ensure a small clump of soil remains around the roots to protect them.