Growing a small peach tree in an outdoor plant box is entirely possible with the right conditions and care. Peach trees thrive in well-draining soil, ample sunlight, and a spacious container that allows root growth. Choose a dwarf or miniature variety, such as 'Bonanza' or 'Pix-Zee,' which are ideal for confined spaces. Ensure the plant box is at least 18-24 inches deep and wide to accommodate the tree's roots.

Place the box in a sunny spot, as peach trees require 6-8 hours of direct sunlight daily. Water consistently, keeping the soil moist but not waterlogged, and fertilize during the growing season for optimal fruit production. Prune annually to maintain shape and encourage airflow. With proper attention, your outdoor plant box can yield delicious, homegrown peaches!