Walmart offers the Pure Garden Stackable Planters 3-Piece Set for $9.99. (Amazon offers it for the same price with free shipping for Prime members.) Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with our mention from three weeks ago and the lowest price we could find by $7. Each planter measures 13" x 13.5" x 5" and includes three 5" compartments.