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When to plant garlic in Rennes: 29 October – end of December

In Rennes, garlic: plant from 29 October to the end of December. For planting stock, the places nearby include Delourmel Agriculture (farm supply, 4 km) and Le Moulin de Charbonnière (farm shop, 5 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.

Garlic in Rennes: soil, season and weather

Garlic goes into the ground in Rennes from 29 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 2.9 °C.

Planting29 October – end of December
First autumn frost28 November
Coldest nightsJanuary, 2.9 °C
Soil back at 5 °C in springalready in the first week of January
Harvest (card)about 8 months after planting: July
Daylight10:08 on 29 October
Daylight at the winter solstice8:21

The same dates in Rennes hold for Tulip, Daffodil, Crocus and Hyacinth.

Garlic in Rennes: care after planting

Planted on 29 October: in the first weeks water every 7 days.

Feeding, by the card’s schedule from that day:

  • 29 October — feed: nitrogen
  • 26 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 Rennes, Le Mans is 4 days earlier and Quimper 11 days later.

CityDistanceDateDifference
Nantes99 km30 October – end of December1 day later
Angers110 km28 October – end of December1 day earlier
Le Mans140 km25 October – end of December4 days earlier
Caen154 km5 November – end of December7 days later
Quimper180 km9 November – end of December11 days later
Tours194 km28 October – end of December1 day earlier

Where to buy garlic for planting in Rennes

Planting stock goes into the ground from 29 October to the end of December; buy it before that. Within 15 km of Rennes OpenStreetMap lists 21 garden centres, 5 farm-supply shops, 3 plant nurseries, 41 markets and 19 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in Rennes?

In Rennes, garlic: plant from 29 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 Rennes?

Last spring frost around 12 March, first autumn frost around 28 November.

Other crops in Rennes, with their dates