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39" Self-Watering WindowboxClick to Zoom In
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Specifications at a Glance:

  • Made of frost-resistant plastic
  • 9" W x 7-1/2" H x 39" L
  • Holds 28 quarts of container mix
  • 9-quart water reservoir
  • Gardener's Supply Exclusive

39" Self-Watering Windowbox

Place Your Order Here

39" Self-Watering Windowbox, White - Item #34-502

$39.95
2  or more  $38.00 ea.
Qty.   

39" Self-Watering Windowbox, Terra Cotta - Item #34-503

$39.95
2  or more  $38.00 ea.
Qty.   

39" Self-Watering Windowbox, Loden - Item #37-897

$39.95
2  or more  $38.00 ea.
Qty.   

39" Self-Watering Windowbox, Bronze - Item #37-900

$39.95
2  or more  $38.00 ea.
Qty.   

Self-Watering Windowboxes Keep Flowers Healthy

These Self-Watering Windowboxes let you create a smart, consistent look around your home, while ensuring your plants don't dry out. They have big water reservoirs that keep soil moist and plants healthy. An easy-to-read water level indicator helps you keep the reservoir full, and adjustable steel mounting brackets allow for wall or deck rail mounting.

  • Enjoy long-blooming, wilt-proof flower displays!
  • We alos offer 23" Windowboxes and 31" Windowboxes
  • Versatile brackets (included) allow installation in minutes
  • Choice of White, Terra Cotta, Bronze or Loden
  • Our Self-Watering Container Mix is the perfect planting mix!

  • What Our Customers Say

    “These self-watering windowboxes were a great find. We go back and forth between our two houses all summer long, and these window boxes keep our plants from drying out between visits.”
    Virginia & Hopewell, Ruxton MD

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    REVIEW SNAPSHOT®

    by PowerReviews
    39" Self-Watering Windowbox
     
    4.5

    (based on 184 reviews)

    96%

    of respondents would recommend this to a friend.

    Pros

    • Holding capacity (114)
    • Attractive (110)
    • Weather resistant (92)
    • Drains well (89)
    • Easy to use (51)

    Cons

    • Flimsy (5)
    • Difficult to assemble (3)
    • Heavy (3)

    Best Uses

    • Outdoor plants (116)
    • Window decoration (75)
    • Patio (30)
    • Garden (13)
    • Growing seeds (9)
    • Reviewer Profile:
    • Avid gardener (95), Practical (49), Budget shopper (22), Getting started (22), Stylish (18)

    Reviewed by 184 customers

    Sort by

    Displaying reviews 1-10

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    5.0

    Great looking windowboxe

    By Cookies2

    from Dayton, OH

    About Me Avid Gardener

    Verified Buyer

    Pros

    • Attractive Design
    • Drains Well
    • Holding Capacity
    • Weather Resistant

    Cons

      Best Uses

      • Outdoor Plants
      • Window Decoration

      Comments about 39" Self-Watering Windowbox:

      We purchased two of the window boxes last spring and were very happy with their look as well as how they evenly watered the plants, sometimes up to 5 or more days before needing refll, even in the hot summer months. This latest purchase is for our family member who was impressed with ours. We know she'll enjoy the ease of maintaining her window box.

       
      5.0

      39" Self-Watering Windowbox

      By Alan

      from Jupiter, Fl

      About Me Avid Gardener

      Verified Buyer

      Pros

      • Attractive Design
      • Drains Well
      • Holding Capacity
      • Weather Resistant

      Cons

        Best Uses

        • Outdoor Plants
        • Plant Transferal
        • Window Decoration

        Comments about 39" Self-Watering Windowbox:

        Very attractive. Better looking than the window boxes that I had installed. Also eliminates the extra watering that I sometimes miss, especially during the summer months in Florida.

         
        4.0

        Perfect for Strawberries

        By Wild Weasel

        from Tiburon, CA

        About Me Avid Gardener

        Verified Buyer

        Pros

        • Great for shallow roots
        • Keeps moisture constant

        Cons

          Best Uses

          • Outdoor Plants

          Comments about 39" Self-Watering Windowbox:

          Strawberries are an unconventional use, but this works perfectly. Each box takes four plants and you could probably interplant with something, but the Strawberry plants are beautiful on their own.

           
          5.0

          Finally a real plant-watering solution

          By Dana

          from Denver, CO

          About Me Avid Gardener

          Verified Buyer

          Pros

          • Attractive Design
          • Holding Capacity

          Cons

            Best Uses

            • Outdoor Plants

            Comments about 39" Self-Watering Windowbox:

            It seemed that the dry air and hot sun dried my plants here in Denver as soon as I watered my balcony herb garden. Finally this is a good solution, and really is effective. The level guage lets me know when it needs water and allows a constant moisture content for the soil.

             
            4.0

            long lasting and sturdy

            By Mary

            from Rochester NY

            About Me Avid Gardener

            Verified Buyer

            Pros

            • Attractive Design
            • Drains Well
            • Holding Capacity
            • Weather Resistant

            Cons

              Best Uses

              • Outdoor Plants
              • Window Decoration

              Comments about 39" Self-Watering Windowbox:

              we have had one of these planters under our garage window for years, so it was a no brainer to use them along a dock--really like the overflow feature-- a welcome improvement --they look great as well

               
              5.0

              Awesome

              By Susie of TN

              from Wartburg, TN

              About Me Avid Gardener

              Pros

              • Attractive Design
              • Drains Well
              • Holding Capacity
              • Weather Resistant

              Cons

                Best Uses

                • Outdoor Plants

                Comments about 39" Self-Watering Windowbox:

                We bought four 39" window boxes about 6 years ago for the front porch of our traditional house in AL. We're now using them on our new Craftsman style house in TN and are getting ready to order two more. They've held up so well, do exactly what they're supposed to do and look great. I add some water soluble fertilizer into the watering hole every few weeks so they get fed and watered at the same time. Great product.

                 
                5.0

                Self-Watering boxes only way to go!

                By Self-watering convert

                from Choctaw, Oklahoma

                About Me Avid Gardener

                Verified Buyer

                Pros

                • Attractive Design
                • Drains Well
                • Holding Capacity
                • Weather Resistant

                Cons

                  Best Uses

                  • Outdoor Plants
                  • Window Decoration

                  Comments about 39" Self-Watering Windowbox:

                  I am very pleased with the self-watering window boxes I ordered. I live in Oklahoma, where the wind comes sweeping down from everywhere, and keeping containers evenly moist is almost impossible. The results I had with these boxes were better than expected. The flowers grew like they were on steroids. Our summer has been horribly hot this year and as long as I kept the reservoirs full, the plants didn't even seem to notice.

                   
                  5.0

                  outstanding

                  By RB

                  from Hamden, CT

                  About Me Avid Gardener

                  Verified Buyer

                  Pros

                  • Attractive Design
                  • Drains Well
                  • Holding Capacity
                  • Weather Resistant

                  Cons

                    Best Uses

                    • Outdoor Plants
                    • Window Decoration

                    Comments about 39" Self-Watering Windowbox:

                    Awesome look to windows and only needs water twice a week in hot dry weather in the Northeast! Very easy to assemble, easy to fill. Make sure that boxes are level though when installing. Costs 80% less than those advertised by Plow and Hearth!

                     
                    5.0

                    Oasis in the dessert

                    By Jeff

                    from Highland, MI

                    About Me Avid Gardener

                    Verified Buyer

                    Pros

                    • Attractive Design
                    • Holding Capacity

                    Cons

                      Best Uses

                      • Outdoor Plants

                      Comments about 39" Self-Watering Windowbox:

                      Finally a window box that works without me having to sprinkle my southern facing deck. I will be adding more window boxes next year.

                       
                      4.0

                      Trouble with water level indicator

                      By Grammy

                      from Brooklyn, New York

                      About Me Getting Started

                      Verified Buyer

                      Pros

                      • Attractive Design

                      Cons

                      • Er stays high when filled
                      • Water level indicator nev

                      Best Uses

                      • Window Decoration

                      Comments about 39" Self-Watering Windowbox:

                      Even when I completely fill up the water receptacle, the floating red indicator doesn't stay up top, so I am not sure how much water should go in, and how often to add water to the window boxes.

                      Displaying reviews 1-10

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