Cold Frame, 4’ x 4’

Cold Frame, 4’ x 4’


Item# 8587874
5 4

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Additional Information

Exclusive | Cold Frame Gives You a Jump on the Growing Season

  • Shelter seedlings from chilly spring weather
  • Start gardening earlier and grow later in fall
  • Protects plants from insects and animals, too

This convenient cold frame provides a sheltered place to harden off seedlings, and protects plants from unpredictable spring weather for faster growth and an earlier harvest. The cover protects plants from harsh wind and chilly temperatures, as well as insects and other pests. It also prevents indoor-grown seedlings from getting sunburned as they acclimate to the outdoors. Adjustable screened vents promote air circulation and allow excess heat to escape on sunny days. Also handy for extending the growing season later into fall. 4' square x 27-1/2" high; sized so it can also be used over a 4' raised bed.

Product Details

  • Assembly required
  • Powder-coated steel frame; reinforced PVC cover
  • 48" sq x 27-1/2" H
  • Imported
  • Gardener's Supply Exclusive


by PowerReviews

(based on 4 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


No Pros


No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (3)

Reviewed by 4 customers

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Sorry I didn't order more ...

By Rick S.

from NW Suburban Chicago.

Verified Reviewer


  • Easy to build
  • Easy To Build Move
  • Easy to move


    Best Uses

    • Extending the season
    • Getting An Early Start
    • Hardening Off Seedlings
    • Raised bed

    I got this last year and let it languish in the basement until now.

    I regret that, because this cold-frame works perfectly for my 4'x 4' raised beds, of which I have four. I have only one of these cold-frames, though and they're apparently no longer available.


    Anyhow, I'm using it this year to harden off my tomatoes and peppers. It works pretty well for that.

    • Was this a gift?:
    • No

    great cover/protector

    By Djlilbit

    from west palm beach Florida

    Verified Buyer


    • Keeps Unwanted Pests Out


      Best Uses

        Keeps heat in and the zipper lets it out when a little green house.protects from storms animals.can keep good ladybugs in.ants are still able to get in but it does everything else! Great .for baby plants and tender greens.

        • Was this a gift?:
        • No

        (2 of 2 customers found this review helpful)


        Cold Frame doubts

        By Beuford

        from Lake City, Colorado

        Verified Buyer

        I have raised beds that this product fits perfectly.
        The separate zippered ends allow easy access and the separate netting zipper provides flexibility for temperature control.
        I had reservations about spending that much money; now, I plan to purchase either 1 or 3 more for next season.

        • Was this a gift?:
        • No

        (13 of 13 customers found this review helpful)


        Jump Start the Garden

        By Deborah

        from Burlington, VT

        Staff Product Tester


        • Great Season-extender
        • Works With Raised Beds


          Best Uses

          • Early Spring Gardening
          • Late-fall Gardening

          This cold frame is one of many products I test here at Gardener's Supply. I tested the 4x4 Cold Frame last year, starting in late April. I planted seeds in a 4x4 raised bed and secured the cold frame to the top. From the photo you can see that there was still snow on the ground. By mid-June, the cold frame was off and the bed was bursting with life. I love all the different textures and shades of green in such a compact space.

          I planted many early season crops, including Red Cardinal spinach, Wildfire lettuce mix, red Russian kale, Swiss chard and bok choy.

          It's amazing to me that all of this life/sustenance/nutrition thrives in 16 square feet — and it was planted while there was still snow on the ground.

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          Product Instructions
          Download instructions for Cold Frame, 4’ x 4’ as a PDF