Wild Bergamot in Zone 4a & 4b
Monarda fistulosa
When to plant wild bergamot in zone 4b
Zones 4a and 4b share the same average frost dates in our data, so this page covers both.
Method: Direct sow: Direct-sow outside. Wild Bergamot doesn't transplant well, or doesn't need the extra time indoors.
| Start indoors | Not typically started indoors |
|---|---|
| Direct sow / transplant outside | Apr 17–Apr 24 |
| Estimated harvest | Apr 16 '28–Apr 23 '28 (First real harvest the season after planting) |
Spacing: about 2 square feet per plant (square-foot-gardening spacing). Mature height: 2-4 ft.
Wild bergamot is the lavender-flowered native Monarda, and it is one of the better pollinator plants to put beside a vegetable bed.
How wild bergamot fits zone 4's season
Zone 4b's frost-free window runs about 128 days, from May 15 to September 20. Wild Bergamot takes about 1 growing season to reach first worthwhile harvest, so what matters here is how many of these seasons it gets, not whether one is long enough.
Wild Bergamot is hardy in zones 3-9, so in zone 4b it stays in the ground through winter and comes back rather than being replanted. Allow about 2.5 ft of spread at maturity.
Good companions
No standout companions recorded yet for Wild Bergamot.
Where to buy wild bergamot seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing wild bergamot" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 4b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Wild Bergamot in USDA zone 4b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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