Salt Questions · Home, wellness & DIY
Does salt keep slugs and snails out of the garden?
Short answer
Salt kills slugs and snails it touches by drawing water from their bodies, but it isn't a good garden remedy. A salt barrier dissolves in rain and the salt damages soil and plants. Hand-picking at night, beer traps, copper tape, removing hiding spots and encouraging predators work without harming the garden.
Kills slugs it touches; salt damages soil and plants
Why salt kills slugs
Slugs and snails have moist skin. Salt draws water out through it by osmosis, which is fatal. That's also why it's an unpleasant way to kill them.
Why not use it in the garden
- Salt in the soil harms plant roots and soil structure.
- Rain dissolves salt barriers quickly.
- Run-off can damage nearby lawns and beds.
Better controls
- Hand-pick on damp evenings.
- Sink shallow traps of beer into the soil.
- Use copper tape around pots.
- Remove boards and debris where slugs hide; water in the morning, not evening.
- Encourage birds, frogs and beetles.
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Cite this page
For school projects and reports. Teachers often prefer the original sources too: see the list below.
The Salt Almanac. (2026, November 8). Does salt keep slugs and snails out of the garden. https://saltalmanac.com/answers/does-salt-keep-slugs-and-snails-out-of-the-garden
“Does salt keep slugs and snails out of the garden.” The Salt Almanac, 8 Nov. 2026, saltalmanac.com/answers/does-salt-keep-slugs-and-snails-out-of-the-garden. Accessed [today's date].
“Does salt keep slugs and snails out of the garden.” The Salt Almanac. Last modified November 8, 2026. https://saltalmanac.com/answers/does-salt-keep-slugs-and-snails-out-of-the-garden.
Original sources
- Wikipedia. Slug. https://en.wikipedia.org/wiki/Slug
- Wikipedia. Osmosis. https://en.wikipedia.org/wiki/Osmosis