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Grow Bed Extension Kits

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Mini Grow Bed Extension Kit
Item # 37-502
$36.95
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Grow Bed Extension Kit
Item # 37-503
$39.95
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Exclusive | Extension Kits for Our Grow Beds

  • These extension kits add 3' to the length of our Grow Beds
  • Ideal for small-space kitchen gardens
  • Choice of 2 sizes

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 popular grow beds by creating a raised bed that is the same width but twice as long.

100% recycled plastic
  • 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 a drill
  • Gardener's Supply Exclusive

REVIEW SNAPSHOT®

by PowerReviews
Grow Bed Extension Kits
 
4.3

(based on 29 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Weather proof (24)
  • Holding capacity (20)
  • Drains well (17)
  • Attractive (16)

Cons

  • Difficult setup (6)
  • Flimsy (4)

Best Uses

  • Outdoor plants (25)
  • Growing seeds (9)
    • Reviewer Profile:
    • Avid gardener (18), Getting started (8)

Reviewed by 29 customers

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(3 of 3 customers found this review helpful)

 
5.0

Love this option!

By HJ

from Carlsbad, CA

About Me Avid Gardener

Verified Buyer

Pros

  • Attractive Design
  • Drains Well
  • Holding Capacity
  • Lightweight
  • Looks chic on my slope
  • Sturdy
  • Weather Resistant

Cons

    Best Uses

    • Grow fruits vegetables

    Comments about Grow Bed Extension Kits:

    Love the mini grow bed and extender. Put on my slope which didn't allow for a lot of depth but I could go wider so this was perfect solution! Looks great!

     
    5.0

    Great Product

    By Andie

    from Georgia

    About Me Getting Started

    Verified Buyer

    Pros

    • Drains Well
    • Holding Capacity
    • Space saver
    • Weather Resistant

    Cons

    • None

    Best Uses

    • Garden addition
    • Outdoor Plants

    Comments about Grow Bed Extension Kits:

    I am using this bed extension to allow me to grow more vegetables. It is perfect for my small yard.

    (1 of 1 customers found this review helpful)

     
    4.0

    Great way to expand your growing space

    By Elena the Artist

    from Columbia, MD

    About Me Avid Gardener

    Verified Buyer

    Pros

    • Drains Well
    • Holding Capacity
    • Weather Resistant

    Cons

    • Difficult To Assemble
    • Flimsy

    Best Uses

    • Growing Seeds
    • Outdoor Plants

    Comments about Grow Bed Extension Kits:

    I have been growing backyard vegetables in the 3' x 3' Grow Bed for several years. I wanted to expand my growing space and the Grow Bed Extension Kit was just perfect. The only drawback to the plastic sides is that over time they bend a bit from the weight of the soil (mine sits on a slight incline). I had a hard time drilling holes for the connecting plates, but it was manageable. It's still a great value for the price.

    (1 of 3 customers found this review helpful)

     
    4.0

    I would buy this product again

    By didi

    from San Rafael CA

    About Me Avid Gardener

    Verified Buyer

    Pros

    • Drains Well
    • Holding Capacity
    • Weather Resistant

    Cons

    • Flimsy

    Best Uses

    • Growing Seeds
    • Household Plants

    Comments about Grow Bed Extension Kits:

    I use it for for plants.

     
    5.0

    Perfect for a small city lot!

    By Guusje

    from Houston

    About Me Getting Started

    Verified Buyer

    Pros

    • Attractive Design
    • Weather Resistant

    Cons

      Best Uses

      • Outdoor Plants

      Comments about Grow Bed Extension Kits:

      This is my third purchase. They are perfect for my small inner city house. They snap together very quickly. If you buy the extenders you do need a drill - since you have drill 4 holes. Not having one I traded some future vegetables with a neighbor. If I had more yard I'd buy more beds.

       
      5.0

      Great Product!

      By Guusje

      from Houston, Texas

      About Me Getting Started

      Verified Buyer

      Pros

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

      Cons

        Best Uses

        • Growing Seeds
        • Outdoor Plants

        Comments about Grow Bed Extension Kits:

        I have a big city pocket yard and these are perfect for making the best use of what little yard I have. The only con is that an electric drill is required to attach the extensions. I had to barter with a friend who has a drill to get it put together.

        (1 of 1 customers found this review helpful)

         
        4.0

        Very nice once it's put together

        By JH

        from Manchester, CT

        About Me Avid Gardener

        Verified Reviewer

        Pros

        • Holding Capacity
        • Weather Resistant

        Cons

        • Difficult To Assemble

        Best Uses

        • Growing Seeds
        • Outdoor Plants

        Comments about Grow Bed Extension Kits:

        I would only buy another if you can have them made with predrilled holes. It was very difficult for me to drill the holes and put together.

         
        5.0

        Wonderful Product!

        By Work4veggies

        from eastern North Carolina

        About Me Master Gardener

        Verified Buyer

        Pros

        • Holding Capacity
        • Weather Resistant

        Cons

          Best Uses

          • Outdoor Plants

          Comments about Grow Bed Extension Kits:

          I now have four 3' x 6' grow beds ... 2 were made using the extension kits. First time I added the new extension kit, the bed was empty and it was a done in a jiffy. Second time I added the new extension kit, the bed was overflowing with strawberry plants ... and it was still done quickly! The U shaped metal piece provides the added support to prevent bulging sides. Great idea.

          (2 of 4 customers found this review helpful)

           
          4.0

          It really works!

          By Mammak

          from Baltimore, MD

          About Me Getting Started

          Verified Buyer

          Pros

          • Holding Capacity
          • Weather Resistant

          Cons

            Best Uses

            • Outdoor Plants

            Comments about Grow Bed Extension Kits:

            I wondered whether to order another 3 x 3 raised bed or the extension kit. Definitely get the extension kit. There are plates to connect the two together and a bar that goes under the dirt to keep the sides straight. Better than I thought it would be.

            (1 of 3 customers found this review helpful)

             
            4.0

            Just bought the extension kit!

            By JD

            from Schaumburg, IL

            About Me Avid Gardener

            Verified Buyer

            Pros

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

            Cons

            • Corners weak

            Best Uses

            • Outdoor Plants

            Comments about Grow Bed Extension Kits:

            I've used the 3 x 3 bed for a couple of years with great satisfaction. When I saw the extension kit, I sent for one and assembled it with my husband. The center bar is definitely needed to keep it from bowing at the connection, and to assemble it single-handedly would be awkward. I've used it mostly for tomato plants with great success. I like that it will not decompose like lumber and that it does not visibly stand out in the corner of the yard (black). I would like for the corners and cover caps to seem more sturdy. However, they have held up for the past 3 years even though I had wondered if they would at assembly time.

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            We're proud of the fact that this item is shipped to you directly from our warehouse in Vermont, by one of our 250 employee-owners. In-stock items are packed with care and shipped within two business days to ensure prompt delivery to your home and garden!

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