Give larger houseplants room to thrive with the 7-inch Washboard self-watering planter from Posie Pots. Its textured, ribbed design adds distinctive style, while the patented reservoir provides steady hydration below the soil. Refill about once a month, depending on growing conditions. Lightweight and made from sustainable corn-based material, it’s ideal for orchids, snake plants, monstera, rubber plants, and other medium-to-large indoor plants.