When to plant cucumbers in Puerto Montt: 29 December – 21 March

In Puerto Montt, cucumber: sow for seedlings from 10 November to 22 February; plant into a greenhouse from 8 December to 21 March; plant out into open ground from 29 December to 21 March.

Cucumber in Puerto Montt: soil, season and weather

In Puerto Montt the soil, not frost, sets the date: the last frost is over around 22 August, but the top 7 cm of soil reaches 18 °C — the minimum on the cucumber card — only around 29 December, 129 days later.

Last spring frost	22 August
Top 7 cm of soil at 18 °C	29 December, 129 days after the last frost
Into an unheated greenhouse	8 December – 21 March; December outside: 9.9 °C at night, 16.8 °C by day; card 18–25 °C
First autumn frost	5 June, 159 days after the start
Days in the bed to the first harvest (card)	34
First harvest, if planted in this window	1 February – 24 April
Days left for picking	125
Daylight	14:56 on 1 December, 15:09 on 29 December
Watering outdoors when fruiting (card)	every 2 days; the driest month, February, has 9 rainy days

The same dates in Puerto Montt hold for Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Cucumber in Puerto Montt: care after planting

Planted on 29 December: in the first weeks water every 4 days.

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

5 January — feed: nitrogen

Pests and diseases of cucumber to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Puerto Montt during the cucumber season

No month of the season averages above the cucumber card's 18–35 °C by day; the warmest, February, averages 18.7 °C. Months that stay below 18 °C even by day on average: March–June and December (9.7–16.8 °C). Nights average below 18 °C in every month of the season, from 4.6 °C to 11.5 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
December	16.8	9.9	96	13	15:09
January	18.2	10.9	76	11	14:50
February	18.7	11.5	60	9	13:42
March	16.6	9.9	117	12	12:25
April	14.1	8	172	15	11:00
May	11.8	6.4	197	18	9:50
June	9.7	4.6	254	20	9:11

ERA5 2016–2025, Open-Meteo

Cucumber in nearby cities

Around Puerto Montt, Los Ángeles is 36 days earlier and Bariloche 5 days later.

City	Distance	Date	Difference
Osorno	101 km	29 December – 17 March	same day
Bariloche	141 km	from 3 January	5 days later
Valdivia	186 km	11 December – 29 March	18 days earlier
Temuco	305 km	9 December – 7 March	20 days earlier
Los Ángeles	448 km	23 November – 16 March	36 days earlier
Coyhaique	461 km	10 December – 11 December	19 days earlier

Where to buy cucumber plants and seeds near Puerto Montt

Buy plants ready to set out from 29 December to 21 March (from 8 December to 21 March for an unheated greenhouse); seed for raising your own is sown from 10 November to 22 February. Within 15 km of Puerto Montt OpenStreetMap lists 4 garden centres, 1 plant nursery and 11 markets (collected 20 October 2026).

Vivero Granja Quilarayen — garden centre
14 km
Vivero Alerce — plant nursery
9 km
Feria Puerto Montt — market
1 km
Mercado de Angelmo — market
3 km

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions