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When to plant garlic in San Luis: 24 May – end of June

In San Luis, garlic: plant from 24 May to the end of June.

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 San Luis: soil, season and weather

Garlic goes into the ground in San Luis from 24 May to the end of June; the window opens a month before the first autumn frost. No month averages below 0 °C at night; the coldest nights, in July, average 4.7 °C.

Planting24 May – end of June
First autumn frost23 June
Coldest nightsJuly, 4.7 °C
Soil back at 5 °C in springalready in the first week of July
Harvest (card)about 8 months after planting: January
Daylight10:14 on 24 May
Daylight at the winter solstice9:57

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

Garlic in San Luis: care after planting

Planted on 24 May: in the first weeks water every 7 days.

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

  • 24 May — feed: nitrogen
  • 21 June — 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

All the nearest cities on our list plant garlic earlier than San Luis; the closest date is in San Juan, 3 days earlier.

CityDistanceDateDifference
Río Cuarto184 kmby 15 May9 days earlier
San Rafael238 km6 May – end of June18 days earlier
Mendoza238 km18 May – end of June6 days earlier
San Juan284 km21 May – end of June3 days earlier
Córdoba289 kmby 16 May8 days earlier
Santiago404 kmby 19 May5 days earlier

Where to buy garlic for planting in San Luis

Planting stock goes into the ground from 24 May to the end of June; buy it before that. Within 15 km of San Luis OpenStreetMap lists 1 plant nursery (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant garlic in San Luis?

In San Luis, garlic: plant from 24 May to the end of June. 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 San Luis?

Last spring frost around 21 August, first autumn frost around 23 June.

Other crops in San Luis, with their dates