Walmart has 5 Pack Self Watering Plant Pots for $18.99.

About this item:

This set includes five self-watering plant pots in sizes 5, 5.5, 6, 6.5, and 7 inches. Constructed from durable, thick PP plastic with 4mm-thick sidewalls, these planters are designed for both indoor and outdoor use. Each pot features drainage holes and a detachable deep tray with absorbent cotton ropes to maintain consistent soil hydration for up to 14 days. A convenient watering lip facilitates easy watering without spills, while a perforated bottom design prevents over-watering. Available in green, white, and black, these pots offer a modern aesthetic suitable for various settings. The package contains five pots, five storage trays, five cotton ropes, five watering lips, and a user manual. Plants are not included.