Grow Bed Extension Kits
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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.
- 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 PowerReviewsPros
- 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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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!
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.
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.
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.
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.
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.
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.
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.
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.
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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There are no special shipping restrictions or charges associated with this item. For detailed information about our delivery methods and charges, click here.
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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