When to plant tomatoes in Caxias do Sul: 20 July – 25 February

In Caxias do Sul, tomato: sow for seedlings from 8 May to 4 January; plant into a greenhouse from 29 June to 25 February; plant out into open ground from 20 July to 25 February.

Tomato in Caxias do Sul: soil, season and weather

In Caxias do Sul frost, not soil, sets the date: the top 7 cm of soil warms to 15 °C — the minimum on the tomato card — around 17 July, 4 days after the last frost on 13 July, so planting waits only for the week after that frost.

Last spring frost	13 July
Top 7 cm of soil at 15 °C	17 July, 4 days after the last frost
Into an unheated greenhouse	29 June – 25 February; June outside: 9.8 °C at night, 17.6 °C by day; card 16–27 °C
First autumn frost	16 June, 332 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	28 September – 5 May
Days left for picking	262
Daylight	10:26 on 29 May, 10:31 on 20 July
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 11 rainy days

Tomato in Caxias do Sul: care after planting

Planted on 20 July: in the first weeks water every 4 days.

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

20 July — feed: balanced (NPK)
17 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 Caxias do Sul during the tomato season

Days average above the tomato card's 16–27 °C in January (27.1 °C). Nights average below 16 °C in April–November (9.5–14.6 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
July	18	9.5	117	10	10:26
August	19.6	10	112	11	11:03
September	21.5	12	176	14	11:54
October	22.3	13.2	187	16	12:46
November	24.3	14.4	154	14	13:34
December	26.4	16.8	149	17	14:00
January	27.1	18.3	167	20	13:48
February	26.7	17.9	136	15	13:06
March	25.2	17	150	16	12:18
April	22.8	14.6	125	14	11:24
May	19.1	11.6	199	14	10:41
June	17.6	9.8	166	12	10:17

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

All the nearest cities on our list plant tomato later than Caxias do Sul; the closest date is in Santa Maria, 3 days later.

City	Distance	Date	Difference
Passo Fundo	157 km	26 July – 26 February	6 days later
Lages	172 km	21 August – 3 March	32 days later
Santa Maria	261 km	23 July – 21 February	3 days later
Chapecó	270 km	10 August – 3 March	21 days later
Guarapuava	421 km	12 August – 3 March	23 days later
Curitiba	457 km	from 26 July	6 days later

Where to buy tomato plants and seeds near Caxias do Sul

Buy plants ready to set out from 20 July to 25 February (from 29 June to 25 February for an unheated greenhouse); seed for raising your own is sown from 8 May to 4 January. Within 15 km of Caxias do Sul OpenStreetMap lists 14 farm-supply shops, 3 markets and 2 farm shops (collected 27 October 2026).

Agropecuária Casa Ruscello — farm supply
11 km
Agropecuária Armazém do Campo — farm supply
2 km
Pontagro — farm supply
2 km
Agromotivo Casa Agropecuária — 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.

Questions