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When to plant tulips in Ushuaia: 27 December – 18 May

In Ushuaia, tulip: plant from 27 December to about 18 May.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. 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: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Tulip in Ushuaia: soil, season and weather

Nights then average below 0 °C in May–September; the coldest, July, averages -4.1 °C.

Planting27 December – 18 May
First autumn frost26 January
Coldest nightsJuly, -4.1 °C
Soil back at 7 °C in spring12 November
Daylight17:18 on 27 December
Daylight at the winter solstice7:12

The same dates in Ushuaia hold for Garlic, Daffodil, Crocus and Hyacinth.

Tulip in Ushuaia: depth, winter cold, pests and pets

Plant tulips at a depth of two to three times the bulb’s height, at least twice the bulb’s width apart, pointed end up (RHS). Where winters are very cold, tulips benefit from deeper planting to protect them from frost penetrating the soil (RHS); here the average daily temperature drops below 0 °C in winter.

In Ushuaia the average daily temperature stays at 10 °C or lower for about 52 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Border tulips often fail to flower in their second year if left in the ground, so many gardeners grow them for one spring and plant fresh bulbs each autumn; Darwin hybrid and Kaufmanniana tulips reflower more reliably (RHS). Soils that stay wet in summer make reflowering difficult (RHS): in Ushuaia the three warmest months bring about 324 mm of rain together.

Grey squirrels often dig up tulip bulbs: lay chicken wire over the bed until the leaves appear, or plant daffodils among them, which squirrels avoid (RHS). Tulips are toxic to dogs, cats and horses, the bulb most of all (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Tulip in nearby cities

Around Ushuaia, Coyhaique is 12 days earlier and Puerto Montt 131 days later.

CityDistanceDateDifference
Punta Arenas250 km8 March – end of June71 days later
Río Gallegos360 km7 March – end of June70 days later
Comodoro Rivadavia997 kmby 24 April118 days later
Coyhaique1,061 km15 December – 25 May12 days earlier
Trelew1,304 kmby 29 April123 days later
Puerto Montt1,522 kmby 7 May131 days later

Where to buy tulip for planting in Ushuaia

Planting stock goes into the ground from 27 December to about 18 May; buy it before that. Within 15 km of Ushuaia OpenStreetMap lists 3 markets (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tulips in Ushuaia?

In Ushuaia, tulip: plant from 27 December to about 18 May. Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

When is the last spring frost in Ushuaia?

Last spring frost around 12 December, first autumn frost around 26 January.

Other crops in Ushuaia, with their dates