Mountain Mint in Zone 7a & 7b
Pycnanthemum pilosum
Yes, mountain mint grows in zones 7a and 7b. Start seeds indoors Feb 20–Feb 27 and plant out Apr 17–Apr 24.
When to plant mountain mint in zone 7b
Zones 7a and 7b share the same average frost dates, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. It needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Feb 20–Feb 27 |
|---|---|
| Direct sow / transplant outside | Apr 17–Apr 24 |
| Estimated harvest | Jul 16–Jul 23 (~90 days after transplanting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 2-3 ft.
Plant alongside it in zone 7b
These go outside within two weeks of mountain mint in zone 7b, so one planting day can cover them.
- BasilApr 24–May 1
- BorageApr 10–Apr 17
- RosemaryApr 24–May 1
- DillApr 3–Apr 10
- CatmintApr 17–Apr 24
- Citronella Plant (Mosquito Plant)Apr 17–Apr 24
Mountain mint is a native perennial mint relative with an unusually strong mint flavor and aroma for its size, and it draws pollinators reliably whenever it's in bloom.
How mountain mint fits zone 7's season
Zone 7b's frost-free window runs about 198 days, from April 10 to October 25. Mountain mint needs about 90 days from transplant to first harvest.
Mountain Mint planting windows in every zone
Zone 7b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Harvest |
|---|---|---|---|
| 5a & 5b | Mar 22–Mar 29 | May 17–May 24 | Aug 15–Aug 22 |
| 6a & 6b | Mar 7–Mar 14 | May 2–May 9 | Jul 31–Aug 7 |
| 7a & 7b (your zone) | Feb 20–Feb 27 | Apr 17–Apr 24 | Jul 16–Jul 23 |
| 8a & 8b | Feb 4–Feb 11 | Apr 1–Apr 8 | Jun 30–Jul 7 |
Harvest dates are about 90 days after the sow or plant-out date, not after starting seeds indoors.
Good companions
No well-established companions for mountain mint.
Where to buy mountain mint seeds
None of the seed suppliers we list carries mountain mint seeds right now. A local garden center or a specialty seed house is the place to look.
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing mountain mint" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 7b calendar · Plan your beds in the Garden Designer →
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Growing Mountain Mint in USDA zone 7b: when to start seeds indoors, when to direct-sow, and when to expect a harvest.
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