Wayfair offers Wade Logan Wiersma Self-Watering Adjustable Planter Set for $68.99 (reg $76.92) with free shipping.

Product Description:
Flex your green thumb with this 2-piece set of planters. They're crafted from plastic and boast a design inspired by rattan furniture. These outdoor planters are self-watering, and they feature drainage holes to promote healthy root growth. They feature a raised design for easy weeding and pruning. Plus, they're resistant to weather, rust, UV, and frost, so they stand up to whatever nature brings their way. These planters require partial assembly, but they come with everything needed to make setup a breeze.Features

• You can stack your customized shape or configuration of the garden planter to fit your space as simply as lego building (check our video of installation). A fun project with your family member!
• It features the design of the self-watering disk and drains hole. It provides extra space for water run-off to be preserved, allowing roots to aerate while having moisture nearby, thereby protecting the plant from rot and over-drying.
• Each garden box can fill in 0.85 cubic feet of dirt (6.3 gallons). Stands at 16 inches tall with extra brackets for one set. Enjoy the perfect size and DIY assembly method for your square foot gardening.
• Each corner-connector piece is 7.5-inch, and then 2 flat panels slide into each side section. Putting this garden box together was pretty easy without any tools (check with installation video in this listing).