To grow potatoes in a container, use a large pot with drainage holes and fill it with loose, well-draining soil. Plant seed potatoes, cover lightly, and place in full sun. Add soil as plants grow, water regularly, and harvest when foliage yellows.
To plant garlic, choose healthy cloves and plant them pointed end up, 2 inches deep and 4–6 inches apart in well-drained soil. Plant in fall or early spring. Water lightly, mulch for protection, and allow full sunlight for strong growth.