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  • Seed Trays
  • Seed Starter Kit - Soil Block Trays, 1020 Trays, Humidity Domes

    27 reviews

    Soil Block / Rockwool Mesh Bottom Seedling Starter Kit

    Get your gardening season started off right with this Seed Starter Kit, equipped with (1) 1020 Deep Mesh, (1) 1020 Deep Trays No Hole Tray, and (1) Humidity Dome. These top-of-the-line components are made out of extra-strength polypropylene plastic that is BPA-free and food-safe for your peace of mind.

    The ultimate all-in-one kit for seedling growing success! Our USA-made heavy-duty trays and humidity domes help create the optimal environment for tender young sprouts to get a head start. And each piece is reusable, so you won’t be spending money and time on replacing them year after year. Plus, they’re stackable – making them easy to store away when the season ends.

    A (1) Pack Kit Includes:

    • Soil Block Deep Mesh Bottom Tray
    • 6" Humidity Dome Clear
    • 1020 Deep Propagation Flat Seed Tray (without holes)


    • Made in the USA
    • 1020 tray and mesh flats are made of PP #5 food-safe plastic
    • Heavy, Duty Durable plastic is used on each component for many years of reuse, saving you money and time from replacing your seed starting equipment
    • Humidity Dome controls airflow with adjustable built-in vents
    • Mesh bottom provides maximum drainage while still holding growing media
    • Each seed starter component is stackable for easy storage
    • 1020 Tray and Mesh Bottom tray are dishwasher safe for easy cleaning

    Tray Size: 21¼" x 11¼" x 2½" deep for both mesh tray and 1020 tray
    Humidity Dome Size: 21¼" x 11¼" x 6" height with handle (5½ interior space)


     Our Seed Starter Kit also comes with a mesh bottom tray lets maximum drainage reach your plants while still being able to hold growing media in place. And don’t forget about the adjustable built-in vents on our humidity dome for controlling airflow! But that’s not all! Both hands trays and the mesh bottom tray are even dishwasher safe–making them super easy to clean. At BSF our commitment to quality products makes us stand out in the arena of seed starting supplies. Our Seed Starter Kit is American made so you know it will last for years into the future. Don’t delay any longer–start planting today with BSF’s Soil Block Trays, 1020 Trays, and Humidity Domes!

    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
    • I purchased one of these kits over the winter and am getting ready to try growing annuals from seeds for the first time. While researching, I've seen some systems use a flat sponge-like sheet for holding water. Is this necessary? Also, what is the recommended level to fill the water? Thanks!

      Rockwool cubes?  You can certainly use those.  They work very well, especially for beginners.  Alternatively, you can use you a soil or potting mix to start your seeds.   Best to put a 1/2" of water on the bottom and use the dome to retain the humidity.   Without the dome, you can also fill the bottom tray with water just so it touches the bottom cells, wicking up the water.  In order to avoid over saturation, a little air blowing in the room is using good propagation practice.   If you want to avoid using the dome at any point and also want to avoid lots of water, just be sure to mist your seedlings a few times a day.  Hope this helps!

    • Can I use a heat pad under this? I'm starting seeds in a fully-enclosed, but unheated utility room. Typically I only see heat pads underneath trays that don't utilize a water bed underneath - so I don't want to heat just the water and encourage mold growth around the roots. Maybe I should just use a grow light instead? (asked on Amazon, too - sorry to duplicate!)

      Yes you can absolutely use a heat pad under these trays even with a water bed.  We do this exact same thing when we grow our seedlings with great success. 

    • I want to grow micro greens - what is the best set up for me to buy? Preferable with nothing but the seeds.

      Most poeple just need a set of the microgreen trays with hole and microgreen trays with no holes.  https://www.bootstrapfarmer.com/products/microgreen-trays

    Customer Reviews
    5.0 Based on 27 Reviews
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    Filter Reviews:
    Cathy A. Popp
    United States United States

    Great set up for soil blocks.

    Using soil blocks this season. 2 inch trays were perfect. Extremely durable. Will get allot of use from these. Thanks!

    jordy g.
    United States United States

    Strong Trays

    Everything shipped fast and the quality is great! I ordered 1020 tray kits and soil block trays.

    ashley f.
    United States United States

    These are so much better than my big box store ones!!!!

    These seemed pricey at first but after getting them I can see why. Everything is well made and I feel like they'll last a long time. I previously bought from big box stores and those trays and domes didn't last more than one season without cracking or warping. I will buy again!

    United States United States

    Love these soil block trays!

    I really like these trays. This is my first time soil blocking for my seeds. I am a roots and refuge farm fan and Jess said these are the best trays so I thought I’d try them. They are very sturdy. The domes are very strong, my 12 pound cat lays on the top of the domes and they don’t collapse. They are well worth the money, they will last for years.

    Bootstrap Farmer Seed Starter Kit - Soil Block Trays, 1020 Trays, Humidity Domes Review
    United States United States

    Great products, made very well!

    Great, I will purchase from Bootstrap Farmer again.