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  • Seed Trays
  • Seed Starter Trays - 32 Cell

    Insert Tray for use with 2.5" Seed Starting Pots


    • These 32 Cell Trays are made with EXTRA strength BPA-free, food-safe plastic and are the most durable propagation trays on the market.  
    • These trays are NOT flimsy or brittle. They can easily handle anything you put in them
    • Backed by 1 Year Warranty to be free of breakage or warping
    • Each cell measures 2” square by 2” deep. Outer Dimensions: 21 1/4” x 11 1/4” x 2” Deep
    • This tray is compatible with 2"x2" rockwool cubes found with many grow towers
    • This tray works as a holder for our 2.5" seed starting pots


    Our 32 Cell Seed Trays are exclusively designed and sold by Bootstrap Farmer. 

    These seedling trays are built to fit 2x2 Rockwool cubes found with many grow tower kits.  These are meant to be reused over and over, season after season. They are perfect for vegetables, herbs, flowers, and germination of seedlings in soil or hydroponics for hobby or commercial growers.

    These will fit into any standard 1020 flats, including our super durable propagation trays, sold exclusively by Bootstrap Farmer.  Cells are a bit wider on the top and slightly tapers to the bottom, with drainage holes. The drainage holes allow for roots to continue to grow through the bottom of the cell tray if desired.  They are large enough for roots to find their way, but also small enough to hold moistened vermiculite in place.

    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
    • What date in May will the Color Seed Starter Pots - 2.5" Extra Strength be available?

      We expect the multi-colored insert pots to be available at the end of June!

    • Do seeds get started in the trays or do you need to put pots in them?

      Pots are not needed.  You can use rockwool or another form of cubed medium.

    • What kind of plastic is this 32 seed carrying tray? Thanks

      The 32 cell tray is made out of PS plastic.

    • Do you have to use a cubed medium with these trays or would regular potting mix /seed starting mix work

      You can use regular potting soil but these are most frequently used as holders for our 2.5 inch pots. 2 inch cubed media will also fit but we do not carry it at this time. 

      Here is a link to the pots: https://www.bootstrapfarmer.com/collections/pots-saucers/products/color-seed-starter-pots-2-5-extra-strength

    • Does the Seed Starter Trays - 32 Cell fit inside the 1020 Extra Strength Trays (no holes). And does the Color Seed Starter Pots - 2.5" Extra Strength fit inside the cells of the Seed Starter Trays - 32 Cell

      We recommend the shallow trays without holes for bottom watering the 32 cell tray and 2.5" pots. All of those fit together well!