Caraway in Zone 6a & 6b
Carum carvi
Yes, caraway grows in zones 6a and 6b. Plant it outside Apr 4–Apr 11.
When to plant caraway in zone 6b
Zones 6a and 6b share the same average frost dates, so this page covers both.
Method: Direct sow: Direct-sow outside. It doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Apr 4–Apr 11 |
| Estimated harvest | About a year after planting |
Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 2-3 ft.
Plant alongside it in zone 6b
These go outside within two weeks of caraway in zone 6b, so one planting day can cover them.
- DillApr 18–Apr 25
- AngelicaApr 4–Apr 11
- ChervilApr 11–Apr 18
- ChivesApr 11–Apr 18
- HorehoundApr 11–Apr 18
- Milk ThistleApr 11–Apr 18

Caraway is grown for its seed, the familiar flavor in rye bread and sauerkraut, and that changes the whole shape of the crop compared to a leafy annual herb. It's a true biennial: plant it this year, and it won't set the seed you're after until next summer.
How caraway fits zone 6's season
Zone 6b's frost-free window runs about 173 days, from April 25 to October 15. Caraway takes about a year from planting to first harvest, so it spans more than one growing season.
Caraway planting windows in every zone
Zone 6b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 3a & 3b | Not usually | May 9–May 16 | About a year after planting |
| 4a & 4b | Not usually | Apr 24–May 1 | About a year after planting |
| 5a & 5b | Not usually | Apr 19–Apr 26 | About a year after planting |
| 6a & 6b (your zone) | Not usually | Apr 4–Apr 11 | About a year after planting |
| 7a & 7b | Not usually | Mar 20–Mar 27 | About a year after planting |
| 8a & 8b | Not usually | Mar 4–Mar 11 | About a year after planting |
Good companions
No well-established companions for caraway.
Where to buy caraway seeds
True Leaf Market (each supplier's caraway seeds)
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing caraway" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 6b calendar · Plan your beds in the Garden Designer →

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