Plug Flats & Cell Flats | Johnny's Selected Seeds

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Select from seed flats, cell plug flats, and jumbo plug flats. Typically, the larger the seedling, the larger the cell you will need to allow for proper root development. Those crops that will be in flats longer may benefit from being started in 20-row flats and "potted up" into plug flats or propagation flats. Seedlings can also be started in, or transplanted into, plug inserts or pots for seedling sales. All of our products follow industry 1020 standard (actual footprint: 11" x 21"). The smaller the number of cells in a flat, the larger each cell is in size: 24–50 cells are good for larger seeds, whereas 200–288 cells are good for tiny seeds. Available in small and case quantities. To compare products, including compatibility across products, see our Flats Dynamic Comparison Chart (at right).

Seed Starting Flats, Trays, Domes & Pots—Comparison Charts

28 Products

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New

Johnny's 72-Cell Air-Pruning Tray – 4 Count Cell Flats

Johnny's 72-Cell Air-Pruning Tray – 4 Count

Promote healthy root growth.

New

Johnny's 72-Cell Air-Pruning Tray – 1 Count Cell Flats

Johnny's 72-Cell Air-Pruning Tray – 1 Count

Promote healthy root growth.

New

Johnny's 72-Cell Air-Pruning Tray – 24 Count Cell Flats

Johnny's 72-Cell Air-Pruning Tray – 24 Count

Promote healthy root growth.

New

Johnny's 50-Cell Air-Pruning Tray – 24 Count Cell Flats

Johnny's 50-Cell Air-Pruning Tray – 24 Count

Promote healthy root growth.

Out Of Stock

New

Johnny's 50-Cell Air-Pruning Tray – 1 Count Cell Flats

Johnny's 50-Cell Air-Pruning Tray – 1 Count

Promote healthy root growth.

Out Of Stock

New

Johnny's 50-Cell Air-Pruning Tray – 4 Count Cell Flats

Johnny's 50-Cell Air-Pruning Tray – 4 Count

Promote healthy root growth.

Out Of Stock

72 Cell Plug Flats – 5 Count Cell Flats

72 Cell Plug Flats – 5 Count

Designed for fresh market growers. Square cells.

128 Cell Plug Flats – 5 Count Cell Flats

128 Cell Plug Flats – 5 Count

Designed for fresh market growers. Square cells.

SureRoots® 50-Cell Deep Plug Flats – 5 Count Cell Flats

SureRoots® 50-Cell Deep Plug Flats – 5 Count

Promotes deeper root development.

50 Cell Plug Flats – 5 Count Cell Flats

50 Cell Plug Flats – 5 Count

Designed for fresh market growers. Square cells.

Air Pruning Starter Kit Seed Starter Kits

Air Pruning Starter Kit

Promote healthy root growth with one convenient kit.

Pro-Tray 72 Cell Flats – 5 Count Cell Flats

Pro-Tray 72 Cell Flats – 5 Count

For home and market gardeners. Round cells.