GreenlyWhen to plant garlic in Southampton: 24 October – end of December
In Southampton, garlic: plant from 24 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.
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 Southampton: soil, season and weather
Garlic goes into the ground in Southampton from 24 October to the end of December; the window opens a month before the first autumn frost. No month averages below 0 °C at night; the coldest nights, in January, average 1.9 °C.
| Planting | 24 October – end of December |
|---|---|
| First autumn frost | 23 November |
| Coldest nights | January, 1.9 °C |
| Soil back at 5 °C in spring | already in the first week of January |
| Harvest (card) | about 8 months after planting: June |
| Daylight | 10:13 on 24 October |
| Daylight at the winter solstice | 7:56 |
Garlic in Southampton: care after planting
Planted on 24 October: in the first weeks water every 7 days.
Feeding, by the card’s schedule from that day:
- 24 October — feed: nitrogen
- 21 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 Southampton, Bristol is 1 day earlier and Portsmouth 8 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Portsmouth | 24 km | 1 November – end of December | 8 days later |
| Brighton | 89 km | 1 November – end of December | 8 days later |
| Oxford | 95 km | 24 October – end of December | same day |
| Bristol | 103 km | 23 October – end of December | 1 day earlier |
| London | 111 km | 24 October – end of December | same day |
| Cardiff | 140 km | 23 October – end of December | 1 day earlier |
Where to buy garlic for planting in Southampton
Planting stock goes into the ground from 24 October to the end of December; buy it before that. Within 15 km of Southampton OpenStreetMap lists 28 garden centres, 15 plant nurseries, 1 market and 10 farm shops (collected 20 October 2026).
- Hillier Gardens Propagation Unit — plant nursery
13 km - Beckheath Nursery — plant nursery
14 km - Timsbury Nursery — plant nursery
15 km - Meadowbrook Farm Shop — farm shop
12 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow garlic
- All frost dates and weather of Southampton
- Shops and markets: Southampton
- Selling a surplus in the United Kingdom
- When to plant garlic in the United Kingdom
- Southampton: #324 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant garlic in Southampton?
In Southampton, garlic: plant from 24 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 Southampton?
Last spring frost around 4 April, first autumn frost around 23 November.
