When to plant watermelons in Los Ángeles: 23 November – 20 February

In Los Ángeles, watermelon: sow for seedlings from 5 October to 23 January; plant into a greenhouse from 2 November to 20 February; plant out into open ground from 23 November to 20 February. For plants and seeds, the places nearby include Vivero El Budy (garden centre, 12 km); addresses and opening hours are below.

Watermelon in Los Ángeles: soil, season and weather

In Los Ángeles the soil, not frost, sets the date: the last frost is over around 25 August, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 23 November, 90 days later.

Last spring frost	25 August
Top 7 cm of soil at 18 °C	23 November, 90 days after the last frost
Into an unheated greenhouse	2 November – 20 February; November outside: 9.3 °C at night, 21.7 °C by day; card 18–35 °C
First autumn frost	31 May, 190 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	21 January – 19 April
Days left for picking	131
Daylight	13:26 on 26 October, 14:21 on 23 November
Watering outdoors when fruiting (card)	every 5 days; the driest month, February, has 2 rainy days

The same dates in Los Ángeles hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Los Ángeles: care after planting

Planted on 23 November: in the first weeks water every 5 days.

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

23 November — feed: balanced (NPK)

Pests and diseases of watermelon 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 Los Ángeles during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, February, averages 28.1 °C. Months that stay below 18 °C even by day on average: May (14.5 °C). Nights average below 18 °C in every month of the season, from 6.2 °C to 13.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
November	21.7	9.3	40	5	14:08
December	25.6	11.3	24	4	14:44
January	27.9	12.9	21	2	14:28
February	28.1	13.2	9	2	13:29
March	24.2	11.2	36	3	12:22
April	18.9	8.7	91	7	11:09
May	14.5	6.2	132	10	10:08

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Los Ángeles, Curicó is 23 days earlier and Valdivia 18 days later.

City	Distance	Date	Difference
Concepción	94 km	6 December – 3 March	13 days later
Chillán	98 km	14 November – 2 March	9 days earlier
Temuco	143 km	9 December – 11 February	16 days later
Talca	236 km	6 November – 3 March	17 days earlier
Valdivia	272 km	11 December – 4 March	18 days later
Curicó	293 km	31 October – 26 February	23 days earlier

Where to buy watermelon plants and seeds near Los Ángeles

Buy plants ready to set out from 23 November to 20 February (from 2 November to 20 February for an unheated greenhouse); seed for raising your own is sown from 5 October to 23 January. Within 15 km of Los Ángeles OpenStreetMap lists 1 garden centre, 2 farm-supply shops and 3 markets (collected 27 October 2026).

Vivero El Budy — garden centre
Mon–Sun 09:00–19:00 · 12 km
Mercado Central — market
Villagrán 599 · 0 km
Vega Techada — market
Villagrán 625 · 1 km
Cooprisem — farm supply
2 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.

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