When to plant tomatoes in Potosí

In Potosí, tomato: sow for seedlings from 16 September; plant into a greenhouse from 7 November; plant out into open ground from 28 November. The frost-free season here is shorter than the 70 days the crop needs from planting to harvest (by its card): grow it in a greenhouse or choose an early variety.

Tomato in Potosí: soil, season and weather

In Potosí frost, not soil, sets the date: the top 7 cm of soil warms to 15 °C — the minimum on the tomato card — around 23 October, 29 days before the last frost on 21 November, so planting waits only for the week after that frost. Between planting out (28 November) and the first autumn frost (2 February) there are 66 days, 4 fewer than the card's 70 to the first harvest; in an unheated greenhouse, three weeks earlier, 17 would be left to spare.

Last spring frost	21 November
Top 7 cm of soil at 15 °C	23 October, 29 days before the last frost
Into an unheated greenhouse	from 7 November; November outside: 2.4 °C at night, 14.1 °C by day; card 16–27 °C
First autumn frost	2 February, 66 days after the start
Days in the bed to the first harvest (card)	70
Days left for picking	-4
Daylight	12:22 on 7 October, 13:11 on 28 November
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 17 rainy days

The same dates in Potosí hold for Cucumber, Bell Pepper, Eggplant, Zucchini, Pumpkin and Watermelon.

Tomato in Potosí: care after planting

Planted on 28 November: in the first weeks water every 4 days.

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

28 November — feed: balanced (NPK)
26 December — feed: nitrogen

Pests and diseases of tomato 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 Potosí during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, November, averages 14.1 °C. Months that stay below 16 °C even by day on average: November–February (11.3–14.1 °C). Nights average below 16 °C in every month of the season, from 2.4 °C to 3.1 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
November	14.1	2.4	77	17	13:02
December	12.8	3	153	25	13:18
January	11.7	3.1	173	25	13:11
February	11.3	3.1	151	24	12:44

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

All the nearest cities on our list plant tomato earlier than Potosí; the closest date is in La Paz, 31 days earlier.

City	Distance	Date	Difference
Sucre	80 km	12 August – 10 March	108 days earlier
Oruro	228 km	3 October – 8 January	56 days earlier
Tarija	241 km	3 September – 21 February	86 days earlier
Cochabamba	247 km	21 August – 1 March	99 days earlier
La Paz	426 km	28 October – 29 December	31 days earlier
Calama	460 km	from 17 August	103 days earlier

Where to buy tomato plants and seeds near Potosí

Buy plants ready to set out from 28 November (from 7 November for an unheated greenhouse); seed for raising your own is sown from 16 September. Within 15 km of Potosí OpenStreetMap lists 16 markets (collected 27 October 2026).

Mercado Central — market
08:00–21:00 · 1 km
Mercado Anselmo Tapia — market
Calle Anselmo Tapia, Potosí · 3 km
Mercado Uyuni — market
0 km
Mercado Tickaloma — market
1 km

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