Arugula in Zone 6a & 6b
Eruca sativa
When to plant arugula in zone 6b
Zones 6a and 6b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Arugula doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Mar 21–Mar 28 |
| Estimated harvest | Apr 30–May 7 (~40 days after direct-sowing) |
Spacing: 9 per square foot (square-foot-gardening spacing). Mature height: 0.5-1.5 ft.

Arugula is about as fast as salad greens get, direct-sown and ready to harvest in around 40 days, with a peppery bite that gets sharper as the weather warms.
How arugula fits zone 6's season
Zone 6b's frost-free window runs about 173 days, from April 25 to October 15. Arugula needs about 40 days from sowing to first harvest.
Good companions
- Carrot: Fast-maturing, non-competing salad-garden interplant.
- Lettuce: Similar light/water needs; grown together as cut-and-come-again greens.
Where to buy arugula seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing arugula" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 6b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Arugula in USDA zone 6b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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