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Grow Bed Extension Kits

Specifications at a Glance:

  • Earth-friendly, 100% recycled plastic
  • Each kit contains 2 sides and a hardware pack
  • Grow Bed Extension Kit is 38-3/4" L x 38-3/4" W x 10" H
  • Mini Grow Bed Extension Kit is 38-3/4" L x 20-3/4" W x 10" H
  • Easy assembly; requires drill
  • Gardener's Supply Exclusive

Grow Bed Extension Kits

Place Your Order Here

Mini Grow Bed Extension Kit - Item #37-502

$36.95
Qty.   

Grow Bed Extension Kit - Item #37-503

$39.95
Qty.   

Extension Kits for Our Grow Beds

A Grow Bed is the most efficient garden area you'll ever tend, with black plastic sides that absorb heat to warm soil early in the season, then help retain moisture all summer long. These two-sided extension kits double the growing space of our poplar grow beds by creating a raised bed that is the same width but twice as long.

  • Try our new Kitchen Garden Planner!
  • These extension kits add 3' to the length of our Grow Beds
  • Space-intensive gardening produces high yields
  • Ideal for small space kitchen gardens
  • Extends the growing season
  • Choice of 2 sizes
100% Recycled Plastic
Click here for more Green Products


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REVIEW SNAPSHOT®

by PowerReviews
Grow Bed Extension Kits
 
4.4

(based on 11 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Weather resistant (9)
  • Attractive (7)
  • Drains well (7)
  • Holding capacity (7)

Cons

    Best Uses

    • Outdoor plants (10)
    • Growing seeds (3)
    • Reviewer Profile:
    • Avid gardener (8)

    Reviewed by 11 customers

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    Displaying reviews 1-10

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    5.0

    I love the kits. Easy to set up.

    By Alex

    from Washington,DC

    About Me Avid Gardener

    Verified Buyer

    Pros

    • Attractive Design
    • Drains Well
    • Easy to assemble
    • Holding Capacity
    • Weather Resistant

    Cons

      Best Uses

      • Growing Seeds
      • Outdoor Plants

      Comments about Grow Bed Extension Kits:

      I use it for root crops mainly.

       
      5.0

      Best in its catagory

      By Rural Lady

      from Wassaic, NY

      About Me Avid Gardener

      Verified Buyer

      Pros

      • Attractive Design
      • Drains Well
      • Holding Capacity

      Cons

        Best Uses

        • Growing Seeds
        • Outdoor Plants
        • Plant Transferal

        Comments about Grow Bed Extension Kits:

        It was very easy to assemble. The lip on the bottom was easy to push into the ground. The black color keeps the soil warm

         
        4.0

        Grow Bed Extension

        By Connie

        from Fort Collins, CO

        About Me Getting Started

        Verified Reviewer

        Pros

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

        Cons

          Best Uses

          • Outdoor Plants

          Comments about Grow Bed Extension Kits:

          Last summer I had one mini-grow bed. This summer I wanted more space. The choice was either a completely new min-bed (all that will fit on the side of our house) or an extension. I opted for saving money and bought to extension but I hadn't considered the geometry of the situation.

          I had dig out the dirt so I could remove the bed to be able to attach the joining plates as one side of the bed was inches from the house.

          I had to move the existing bed to the patio for a flat space to work.

          Each step is relatively simple but when there are a dozen steps, adding the extension to an existing bed turns into a major project.

          The extensions make the most sense if you are starting a new bed and know you want it longer from the beginning. If I add more space next year, I will splurge on a bed, not the extension.

           
          5.0

          very easy to instal

          By Sherry

          from Hollywood, FL

          About Me Avid Gardener

          Verified Buyer

          Pros

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

          Cons

            Best Uses

            • Outdoor Plants

            Comments about Grow Bed Extension Kits:

            does exactly what it's designed to do, makes your existing bed bigger. very easy to instal, looks good, and i think it will last although i have had it less than a month

             
            4.0

            grow bed and extension kit

            By Denise

            from WV

            About Me Avid Gardener

            Verified Buyer

            Pros

            • Attractive Design
            • Weather Resistant

            Cons

            • Flimsy

            Best Uses

            • Outdoor Plants

            Comments about Grow Bed Extension Kits:

            The grow bed and extension were simple to put together. I liked the black plastic material because I didn't want something that would rot, plus it is a lot lighter weight than wood. It was very easy to carry myself and reposition in the garden. I have mine filled with dirt but no plants yet and I've already gotten two compliments from neighbors asking where I got them.

             
            3.0

            A bit inconvenient to assemble

            By New To Gardening

            from San Luis Obispo, CA

            About Me Getting Started

            Verified Buyer

            Pros

            • Holding Capacity

            Cons

            • Difficult To Assemble

            Best Uses

            • Outdoor Plants

            Comments about Grow Bed Extension Kits:

            I used the extender kit to make one long grow bed. While I love the final product, the assembly process was a bit arduous and could be a lot more user friendly. As a Product Designer, I'm confident this kit could be redesigned to be both efficient and clever.

            (1 of 1 customers found this review helpful)

             
            5.0

            Very pleased

            By Eileen

            from Laurel MD

            About Me Avid Gardener

            Verified Buyer

            Pros

            • Attractive Design
            • Drains Well
            • Weather Resistant

            Cons

              Best Uses

              • Outdoor Plants

              Comments about Grow Bed Extension Kits:

              I was very pleased with my original grow bed, which I have used to grow both potatoes and tomatoes (in different years). I was delighted to find I could make it larger with the extension kit and will be growing my root vegetables in it this year. It expands my harvest which is a real bonus.

              (2 of 2 customers found this review helpful)

               
              4.0

              Love my Grow Bed Extension

              By Plantpixie

              from Philadelphia, PA

              About Me Avid Gardener

              Verified Buyer

              Pros

              • Convenience
              • Weather Resistant

              Cons

                Best Uses

                • Vegetable gardening

                Comments about Grow Bed Extension Kits:

                I've doubled my kitchen garden space from two 3X3 raised beds to two 3X6 beds easily with the raised bed extensions. My only complaint is that the design includes a metal support bar to be placed under the beds at their connecting side. This requires lifting both sides, a difficult task when one side is already an established bed filled with soil. Nonetheless, I look some liberty with the instructions and insead of placing the support bar under the beds, I placed it over the beds and it performs the same function just as well wihtout having to disturb the original bed. The only drawback is that I have a thin metal bar going across the center of the finished beds, but it's really not a problem. Overall, I love the product.

                (1 of 2 customers found this review helpful)

                 
                4.0

                Love My Grow Beds!

                By veggiegrower

                from eastern NC

                Verified Buyer

                Pros

                • Easy to assemble
                • Weather Resistant

                Cons

                • Pricey

                Best Uses

                • Outdoor Plants

                Comments about Grow Bed Extension Kits:

                I made two 3' x 6' raised beds without the braces provided in this package, and they are swayback from the pressure of the soil. I've installed this kit to create a third 3' x 6' bed and can already see it is holding up better. Will know more after spring planting!

                (1 of 1 customers found this review helpful)

                 
                5.0

                One wasn't big enough

                By Avid Gardener

                from Junction City, Oregon

                About Me Avid Gardener

                Verified Buyer

                Pros

                • Drains Well
                • Holding Capacity
                • Weather Resistant

                Cons

                  Best Uses

                  • Outdoor Plants

                  Comments about Grow Bed Extension Kits:

                  I use the grow bed to grow my vegetable garden. The 3x6 foot on wasn't big enough so I added 2 extensions. Now with a 3x9 foot space I can grow every thing in one area. I can hardly wait for next spring to fill it up with veggies. The best thing about it is that it is not treated with any preservatives and will last for as long as I will ever need it.

                  Displaying reviews 1-10

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