GreenlyWhen to plant garlic in Harrisburg: 12 October – end of December
In Harrisburg, garlic: plant from 12 October to the end of December. For planting stock, the places nearby include Stauffers of Kissel Hill (garden centre, 13 km) and Nature's Way Nursery (garden centre, 13 km); addresses and opening hours are below.
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 average daily temperature here stays above 0 °C all winter, and at least two months average 10 °C or less: the cold garlic needs, one to two months at 0–10 °C (RHS). The two-month threshold is our rule of thumb. Sources: UVM Extension, UNH Extension, RHS.
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Garlic in Harrisburg: soil, season and weather
Garlic goes into the ground in Harrisburg from 12 October to the end of December; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–February; the coldest, January, averages -3.5 °C.
| Planting | 12 October – end of December |
|---|---|
| First autumn frost | 11 November |
| Coldest nights | January, -3.5 °C |
| Soil back at 5 °C in spring | 5 March |
| Harvest (card) | about 8 months after planting: June |
| Daylight | 11:19 on 12 October |
| Daylight at the winter solstice | 9:18 |
Garlic in Harrisburg: care after planting
Planted on 12 October: in the first weeks water every 7 days.
Feeding, by the card’s schedule from that day:
- 12 October — feed: nitrogen
- 9 November — 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 Harrisburg, Allentown is 8 days earlier and Baltimore 11 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Hagerstown | 103 km | 12 October – end of December | same day |
| Baltimore | 111 km | 23 October – end of December | 11 days later |
| Allentown | 124 km | 4 October – 30 December | 8 days earlier |
| Annapolis | 148 km | 20 October – end of December | 8 days later |
| Philadelphia | 150 km | 12 October – end of December | same day |
| Washington, D.C. | 152 km | 17 October – end of December | 5 days later |
Where to buy garlic for planting in Harrisburg
Planting stock goes into the ground from 12 October to the end of December; buy it before that. Within 15 km of Harrisburg OpenStreetMap lists 4 garden centres, 4 markets and 3 farm shops (collected 28 October 2026).
- Peach Ridge Produce — farm shop
1 km - Stauffers of Kissel Hill — garden centre
Gettysburg Pike 51, 17055 Mechanicsburg · 13 km · skh.com - Stauffers of Kissel Hill — garden centre
Middletown Road 1075, 17036 Hummelstown · Mon–Sat 08:00–19:00; Sun 08:00–18:00 · 15 km - Nature's Way Nursery — garden centre
Pleasant Hill Road 1451, 17112 Harrisburg · 13 km · natureswaybonsai.com
Places: © OpenStreetMap contributors, ODbL.
- How to grow garlic
- All frost dates and weather of Harrisburg
- Shops and markets: Harrisburg
- Selling a surplus in the United States
- When to plant garlic in the United States
- Harrisburg: #459 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant garlic in Harrisburg?
In Harrisburg, garlic: plant from 12 October to the end of December. 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 Harrisburg?
Last spring frost around 10 April, first autumn frost around 11 November.
