From Ground: Thoroughly water the almond plant the day before you plan to move it to make the soil easier to dig and maintain the root ball's integrity. When ready to transplant, use your spade to carefully dig a trench around the plant, making sure to dig deep and wide enough to encompass most of the roots. Work the spade underneath the root ball and gently lift it from the ground.
From Pot: Water the almond adequately and then overturn the pot gently while holding the plant at its base. Shaking the pot gently should make the plant come out, along with the root ball. If it's stubborn, you may need to tap the rim of the pot.
From Seedling Tray: Water the almond plant and allow it to drain. Using a garden trowel, gently scoop out the seedling with its root ball and surrounding soil. Always handle the seedlings by their leaves instead of the stem.