Seed Germination Trays

Department

Deep plug trays

Compare the depth of the planting cavity and the total tray height before choosing deeper cells.

4 items

RooTrimmer

RooTrimmer 40-cell extra-deep plug trays, pack of 10

Cells per flat: 40Flat count: 10

Choose the 40-cell extra-deep version if cell depth is a priority and you can allocate the extra height on the bench.

$39.99Nov 8, 26, 12:09 PM · New York
Price info

This is a monthly price snapshot supplied by Rainforest, not a live quote. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

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RooTrimmer

RooTrimmer 18-cell wide deep plug trays, pack of 10

Cells per flat: 18Flat count: 10

The 18-cell version has broad three-inch square openings.

$39.99Nov 8, 26, 12:10 PM · New York
Price info

This is a monthly price snapshot supplied by Rainforest, not a live quote. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Add to cart Opens Amazon. Order and pay there.

RooTrimmer

RooTrimmer 32-cell extra-deep inserts, pack of 10

Cells per flat: 32Flat count: 10

Choose this 32-cell insert when the planned plugs need greater depth than a shallow flat gives and a separate base is already available.

$39.99Nov 8, 26, 12:11 PM · New York
Price info

This is a monthly price snapshot supplied by Rainforest, not a live quote. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Add to cart Opens Amazon. Order and pay there.

RooTrimmer

RooTrimmer 54-cell deep inserts for TD377, pack of 5

Cells per flat: 54Flat count: 5

The 54-cell insert is for RooTrimmer’s shorter TD377 format.

$26.99Nov 8, 26, 12:12 PM · New York
Price info

This is a monthly price snapshot supplied by Rainforest, not a live quote. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Add to cart Opens Amazon. Order and pay there.

Choosing deep plug trays

Find the relevant depth

Overall tray height includes the rim and base. Check whether the listing gives the depth of each cavity separately, especially where a seedling will need more vertical room before transplanting.

Plan support and cover clearance

A deep flat may extend below the rim or sit higher in its base. Check whether the base supports it and measure from the top of the growing medium to the underside of the cover.

Compare these selections

Department questions

Is 3.9 inches always the depth of each cell?

Check the dimension drawing for the exact listing. A quoted height can describe the complete flat.

Should I compare the number of cavities too?

Yes. Cell width and count affect how many plugs you can start at once.

How do I check the bottom tray?

Compare the outside rim, usable base dimensions and height of the chosen flat with the tray beneath it.

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