Indoor seed starting guide

Choose the right seed starter tray and grow stronger seedlings.

Starting seeds indoors gives you a head start on the season. A good tray keeps moisture even, protects young roots and makes transplanting easy. Here is how to choose one.

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Top picks by type

Trays differ in cell size, lids and build. These are the types we would look at first, depending on what you grow. See all five picks and the comparison table.

Best all-rounder: Tray set with dome and drainage
Best all-rounder

Tray set with dome and drainage

A standard multi-cell tray with a vented dome and a solid base. Works for most vegetables, herbs and flowers.

  • Vented, clear dome
  • Roughly medium cells
  • Leak-proof base tray
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Best for beginners: Starter kit with labels
Best for beginners

Starter kit with labels

An all-in-one kit with a modest number of cells, labels and a dome, so there is less to buy and less to plan.

  • Includes labels
  • Fewer cells, easier to manage
  • Sturdy plastic
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Best for big seedlings: Fewer, larger cells
Best for big seedlings

Fewer, larger cells

Trays with larger cells give tomatoes, peppers and squash more room for roots before transplanting.

  • Deeper cells
  • Good drainage holes
  • Sturdy tray or flats
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Why use a seed starter tray?

Sowing into separate cells is one of the simplest ways to improve your results.

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An earlier start

Start seeds weeks before the last frost so plants are ready when the weather allows.

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Even moisture

A dome and good drainage help keep soil damp, not soggy, during germination.

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Less root shock

Each seedling gets its own space, so roots are easier to lift and transplant.

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Easy organizing

One cell per seed makes it simple to label varieties and move the whole batch.

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Reusable

A sturdy tray can be washed and used again every season.

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Save on plants

Growing from seed costs far less than buying established seedlings.

Ready to start growing?

See the full range of seed starter trays, read recent customer reviews and pick the one that suits your garden.

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