From Ground: Start by watering your eastern bottle-brush grass plant to dampen the soil, making it easier to extract the plant without causing too much stress to the root system. Then, using a shovel, begin to dig a trench around the plant, far enough away to avoid damaging the root ball. Slowly begin to work the shovel under the root ball, using care to keep it intact. Once the plant is freely moving, carefully lift it from the ground and place it immediately into a bucket or bag to avoid the roots drying out.
From Pot: Again, water the eastern bottle-brush grass plant to prepare it for moving. Tilt the pot sideways, supporting the plant's stem and soil with your hand while you gently pull the pot off. If the plant seems stuck, you can roll the pot a bit to loosen the soil, but be careful not to damage the plant. Once removed, immediately place the plant in a bucket or bag to protect the roots.
From Seedling Tray: Firstly, water the seedlings so that they are damp but not soaking. Using great care so as not to damage the small roots or stem, gently ease the eastern bottle-brush grass seedling out of the tray, holding it by a leaf, not the stem, and place into a small bag or container of water to keep the roots moist until you can transplant them.