Soaking Seeds Overnight Gives Vegetables a Head Start on Weeds

Cornell professor shares a simple trick to speed up germination and help crops outcompete weeds.

Apr. 14, 2026 at 7:00am

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An abstract, dreamlike image of freshly planted vegetable seeds sprouting through the soil, captured in a hazy, warm-toned wash of soft focus and blurred light, conveying the concept of early growth and the race against weeds.Soaking seeds overnight before planting can give vegetable crops a competitive edge against weeds in the early growth stage.Ithaca Today

Soaking vegetable seeds overnight before planting can significantly speed up germination, giving the seedlings a competitive edge over weeds. Horticulture professor Dr. Alan Taylor at Cornell University recommends this simple technique, which only requires a paper towel, water, and one night, for large-seeded crops like sweet corn, peas, cucumbers, and beets, as well as slow-germinating small seeds like carrots and parsley.

Why it matters

Faster germination and seedling emergence is crucial for vegetable crops to establish themselves before weeds take over. This head start can help plants survive challenges like frost, temperature swings, animals, and flooding during the vulnerable early growth stage.

The details

To soak the seeds, line a tray or egg carton with a damp paper towel, sprinkle the seeds on top, and cover large seeds with a second damp towel. Leave the setup at room temperature (65-70°F) overnight, but no longer than 24 hours, as oversaturation can cause the seeds to rot or sprout prematurely. Then transfer the seeds to a dry towel before planting.

  • The soaking process should take place overnight, lasting no more than 24 hours.

The players

Dr. Alan Taylor

A horticulture professor at Cornell University's School of Integrative Plant Science who recommends the seed-soaking technique.

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What they’re saying

“Faster germination and seedling emergence gives your vegetable crop a good head start and competitive edge over weeds.”

— Dr. Alan Taylor, Horticulture Professor

What’s next

Gardeners can try this seed-soaking method in their own vegetable gardens to see if it helps their crops outcompete weeds.

The takeaway

This simple overnight seed-soaking trick can give vegetable seedlings a crucial head start, helping them establish themselves before weeds take over and potentially survive early challenges like frost and flooding.