When to plant tomatoes in Ponta Grossa: 26 July – 4 March

In Ponta Grossa, tomato: sow for seedlings from 14 May to 12 January; plant into a greenhouse from 5 July to 4 March; plant out into open ground from 26 July to 4 March.

Tomato in Ponta Grossa: soil, season and weather

In Ponta Grossa frost, not soil, sets the date: the top 7 cm of soil warms to 15 °C — the minimum on the tomato card — around 10 July, 9 days before the last frost on 19 July, so planting waits only for the week after that frost.

Last spring frost	19 July
Top 7 cm of soil at 15 °C	10 July, 9 days before the last frost
Into an unheated greenhouse	5 July – 4 March; July outside: 9.6 °C at night, 20.2 °C by day; card 16–27 °C
First autumn frost	24 June, 334 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	4 October – 13 May
Days left for picking	264
Daylight	10:39 on 4 June, 10:52 on 26 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 5 rainy days

Tomato in Ponta Grossa: care after planting

Planted on 26 July: in the first weeks water every 4 days.

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

26 July — feed: balanced (NPK)
23 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 Ponta Grossa during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, December, averages 26.4 °C. Nights average below 16 °C in April–November (9.6–15.3 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	20.2	9.6	40	5	10:43
August	21.4	10.7	82	8	11:13
September	24.7	13.6	95	10	11:56
October	24.5	14.8	171	16	12:39
November	25.3	15.3	114	14	13:20
December	26.4	17.2	163	16	13:41
January	26.4	18	179	22	13:32
February	26.3	17.7	133	17	12:56
March	26.1	17.3	120	17	12:16
April	24.2	15	75	9	11:31
May	21.6	12.3	98	9	10:55
June	20	10.7	117	10	10:35

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Ponta Grossa, Cascavel is 1 day earlier and Lages 26 days later.

City	Distance	Date	Difference
Curitiba	97 km	from 26 July	same day
Guarapuava	136 km	12 August – 3 March	17 days later
Lages	304 km	21 August – 3 March	26 days later
Chapecó	332 km	10 August – 3 March	15 days later
Cascavel	333 km	25 July – 8 March	1 day earlier
Passo Fundo	417 km	26 July – 26 February	same day

Where to buy tomato plants and seeds near Ponta Grossa

Buy plants ready to set out from 26 July to 4 March (from 5 July to 4 March for an unheated greenhouse); seed for raising your own is sown from 14 May to 12 January. Within 15 km of Ponta Grossa OpenStreetMap lists 1 farm-supply shop, 3 markets and 1 farm shop (collected 27 October 2026).

Socidisco — farm supply
1 km
Feirinha — market
1 km
Mercado Cláudia — market
4 km
Super Cipa — market
5 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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