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  • Seed Trays
  • 6 Cell Plug Tray Inserts

    146 reviews

    USA Made 6 Cell Trays

    Our 6 cell tray inserts are made for the grower that wants an easily removable insert when growing a variety of crops.  Made out of food-safe heavy duty polypropylene plastic.  These are not your typical throw-away seed tray inserts.  They are built to be used for many years of use. Also available in colors!


    • Made from FDA Prime Grade Extra Strength Polypropylene (#5 BPA free) plastic
    • Extra Large ⅝" Drainage Hole which makes for an incredibly easy seedling removal. 
    • These 6 Cell Inserts are designed with Air Prune technology.  Air channels are added on each side to prevent root circling.  Air pruned roots are shown to provide healthier and more vigorous growth. 
    • Proudly made in the USA our Seed trays are guaranteed to last at least 2 years
    • 12 inserts fit per 1020 tray
    • 60 pack gives you a total of 360 cells
    • 120 pack gives you a total of 720 cells
    • 360 pack gives you a total of 2,160 cells


    • Seed tray insert outer dimensions: 5" x 3⅓" x 2¼" height
    • Each cell in tray insert is 1½" x 1½" x 2⅛" on top which tapers down to 1" at the bottom
    • Air pruning slits measure 0.11" wide x 1¼" tall

    Free shipping on orders over $49 to Contiguous US

    Shipping Policy

    Most products will ship from our facility in 1 to 2 business days after the order is placed.  Express shipments placed after 12PM EST will be shipped out next business day. Full details can be found on our Shipping Policy Page

    Returns Policy

    Returns can be made on most products within 30 days of purchase. After 30 days we unable to offer a refund or exchange. Certain products are non-returnable. For full details visit our Returns Policy


    Ask a Question
    • How do you clean and disinfect for reuse?

      Use a hose to wash off any soil residue. They can then be washed in hot soapy water. For further disinfecting they can be dipped either into vinegar, 3% hydrogen peroxide, or a mild bleach solution.

    • What is the diameter of the drainage hole on a cell?

      The 6 cell plug tray inserts have slits that are about 1/8". Over the next 3 months, we will be redesigning them to have 5/8" hole on the bottom.

    • What can be used to push seedlings out of the holes at the bottom of these cells?

      Our Widger Dibber is the best tool for removing seedlings from cell trays! Here is the link to the product!https://www.bootstrapfarmer.com/products/widger-dibber-set?_pos=2&_sid=426392a8a&_ss=rhttps://www.bootstrapfarmer.com/products/widger-dibber-set?_pos=2&_sid=426392a8a&_ss=r

    • How many 6 cell inserts fit in the 1020 tray.

      12 of the 6 cell inserts fit in each 1020 tray.

    • Will these 6 cell trays fit in the 5x5 tray with humidity dome?

      They won't fit in the 5x5 trays.  They are designed to fit within the 1020 trays.

    • Will 12 of these 6-cell inserts fit into the 1010 seed starting flats?

      You can fit 6 of the 6 cell trays in a 1010.  However they won't sit completely flat.  They are better designed for 1020 trays.

    • Are these dishwasher safe?

      They are without the heated dry cycle. Any damages done during dishwashing void the warranty.

    Customer Reviews
    4.9 Based on 146 Reviews
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    Filter Reviews:
    Roxann SVG verified by SHOP

    Love the strong root system developed when I used these plug tray inserts. Note: plants seem to need less water with these inserts.

    United States United States

    6 Cell Plug Tray Inserts

    These inserts are well made and fit perfectly in the trays I bought. They work great for bottom watering and I can't wait to see my first seedlings!

    Sandra A.
    United States United States

    No more replacing these every year!

    How great are these? Heavy duty, not going to crack when you remove the plants. Large hole at the bottom to push out your seedlings easily. MACHINE WASHABLE! No more standing over a bucket in the greenhouse washing up for spring! You can lift each 6 Cell Plug Tray Inserts with one hand, fully filled with plants, and not have it crumple in your hand. Fantastic product, fantastic service. I keep returning to this company for all my garden planters and greenhouse accessories.

    Bootstrap Farmer 6 Cell Plug Tray Inserts Review
    United States United States

    repeat customer

    Very well made. I’m confident they will provide years of use. Very prompt delivery

    United States United States

    Excellent: I would definitely buy from you again

    Excellent: I would definitely buy from you again