When to plant tomatoes in Paraná: from 30 July

In Paraná, tomato: sow for seedlings from 18 May; plant into a greenhouse from 9 July; plant out into open ground from 30 July. There is no autumn frost here, so the frost dates set no end to the window.

Tomato in Paraná: soil, season and weather

In Paraná the soil, not frost, sets the date: the last frost is over around 8 July, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 30 July, 22 days later. Paraná has no autumn frost in the median year, so frost does not end the season.

Last spring frost	8 July
Top 7 cm of soil at 15 °C	30 July, 22 days after the last frost
Into an unheated greenhouse	from 9 July; July outside: 8.7 °C at night, 16.6 °C by day; card 16–27 °C
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	from 8 October
Daylight	10:08 on 8 June, 10:32 on 30 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 5 rainy days

Tomato in Paraná: care after planting

Planted on 30 July: in the first weeks water every 4 days.

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

30 July — feed: balanced (NPK)
27 August — 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 Paraná during the tomato season

Days average above the tomato card's 16–27 °C in November (27.8 °C) and December (29.8 °C). Nights average below 16 °C in July–October (8.7–14.4 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	16.6	8.7	49	5	10:15
August	19.3	9.7	46	5	10:56
September	22.1	11.8	44	5	11:52
October	24.8	14.4	84	8	12:50
November	27.8	17.4	89	7	13:44
December	29.8	19.7	98	8	14:12

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Paraná, Salto is 6 days earlier and Buenos Aires 34 days later.

City	Distance	Date	Difference
Santa Fe	19 km	from 30 July	same day
Rosario	136 km	15 August – 23 February	16 days later
Paysandú	240 km	27 July – 6 March	3 days earlier
Salto	247 km	from 24 July	6 days earlier
Córdoba	347 km	31 August – 23 February	32 days later
Buenos Aires	377 km	from 2 September	34 days later

Where to buy tomato plants and seeds near Paraná

Buy plants ready to set out from 30 July (from 9 July for an unheated greenhouse); seed for raising your own is sown from 18 May. Within 15 km of Paraná OpenStreetMap lists 1 garden centre and 5 markets (collected 27 October 2026).

Supermercado Amanecer — market
Avenida Zanni 2614, 3100 Paraná · 6 km
Mercado Nogoyá — market
Nogoyá, 3100 Paraná · 1 km
Día — market
Benicio López, 3100 Paraná · 6 km
Mercado Concentrador El Charrua — market
Almafuerte, 3100 Paraná · 6 km

Questions