Comments on: Soil blocking: A better way to start seeds indoors

By: Niki Jabbour

Mon, 30 Mar 2026 13:09:37 +0000

I usually do with a plastic dome or plastic wrap as it does help with germination. And because I have a fan (set on low) in my seed-starting room, the soil dries out quicker.

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By: Ally bodnar

Sat, 28 Mar 2026 17:25:33 +0000

Do you cover your trays once you’ve seeded the blocks? I’m trying to get away without covers but want to ensure the plants have the best chance of germination. Thanks!

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By: Lesley Williams

Fri, 26 Jan 2024 01:48:15 +0000

Thank you for this information. I’ve been on the fence about buying soil blockers because I didn’t know which sizes to buy. I think I’ll buy some soul blockers.

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By: Niki Jabbour

Mon, 08 Jan 2024 13:55:04 +0000

In reply to Matthew Koch.

Hi Matthew, good questions! I typically take my potting mix and place it in a flat bottomed container/tub. If I had 4 gallons of potting mix, I would add 1 gallon of compost and 1 gallon of perlite. You can buy bagged compost if you don’t have enough homemade… if you do use homemade compost just be sure to pick out any chunks or screen it so that it’s fine. Generally store-bought compost is already screened and is fine enough for soil blocking. Good luck!! Niki

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By: Matthew Koch

Sun, 07 Jan 2024 19:10:31 +0000

Thank you. This was very helpful. I have ordered some and looking forward to starting my garden this way this year. I do have a few questions. How much perlite to add to the mix? Any suggestions on the compost? I don’t have a compost bin. How much compost to add to the mix.

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