Saltwort in Zone 3a & 3b
Salsola komarovii
When to plant saltwort in zone 3b
Zones 3a and 3b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Saltwort doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | May 30–Jun 6 |
| Estimated harvest | Jul 14–Jul 21 (~45 days after direct-sowing) |
Spacing: 9 per square foot (square-foot-gardening spacing). Mature height: 0.5-1.5 ft.
Saltwort is a Japanese salt-marsh green with a crisp, briny bite similar to samphire, adapted to salty soil but perfectly happy growing in ordinary garden dirt too.
How saltwort fits zone 3's season
Zone 3b's frost-free window runs about 98 days, from May 30 to September 5. Saltwort needs about 45 days from sowing to first harvest.
Good companions
No standout companions recorded yet for Saltwort.
Where to buy saltwort seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing saltwort" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 3b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Saltwort in USDA zone 3b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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