GreenlyWhen to plant garlic in Grand Forks: 16 September – 31 October
In Grand Forks, garlic: plant from 16 September to about 31 October.
Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.
The date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: UVM Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).
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Garlic in Grand Forks: soil, season and weather
Garlic goes into the ground in Grand Forks from 16 September to about 31 October; the window opens a month before the first autumn frost. Nights then average below 0 °C in November–April; the coldest, February, averages -15.9 °C.
| Planting | 16 September – 31 October |
|---|---|
| First autumn frost | 16 October |
| Coldest nights | February, -15.9 °C |
| Soil back at 5 °C in spring | 19 April |
| Harvest (card) | about 8 months after planting: May |
| Daylight | 12:35 on 16 September |
| Daylight at the winter solstice | 8:23 |
Garlic in Grand Forks: care after planting
Planted on 16 September: in the first weeks water every 7 days.
Feeding, by the card’s schedule from that day:
- 16 September — feed: nitrogen
- 14 October — feed: nitrogen
Pests and diseases of garlic to watch for:
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Garlic in nearby cities
Around Grand Forks, Winnipeg is 4 days earlier and Duluth 12 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Fargo | 118 km | 16 September – 4 November | same day |
| Winnipeg | 220 km | 12 September – 26 October | 4 days earlier |
| Bismarck | 303 km | 15 September – 4 November | 1 day earlier |
| Duluth | 396 km | 28 September – 10 November | 12 days later |
| Minneapolis | 439 km | 24 September – 10 November | 8 days later |
| Pierre | 467 km | 24 September – 19 November | 8 days later |
Where to buy garlic for planting in Grand Forks
Planting stock goes into the ground from 16 September to about 31 October; buy it before that. Within 15 km of Grand Forks OpenStreetMap lists 2 markets (collected 29 October 2026).
- Town Square Farmers Market — market
Jun 17–Sept 30 Sat 09:00–13:00 · 5 km · tsfarmersmarket.com - Daryeel Grocerys — market
5 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow garlic
- All frost dates and weather of Grand Forks
- Shops and markets: Grand Forks
- Selling a surplus in the United States
- When to plant garlic in the United States
- Grand Forks: #738 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant garlic in Grand Forks?
In Grand Forks, garlic: plant from 16 September to about 31 October. Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. Mulch after planting.
When is the last spring frost in Grand Forks?
Last spring frost around 10 May, first autumn frost around 16 October.
