GreenlyWhen to plant pumpkins in Curitiba: from 3 September
In Curitiba, pumpkin: sow for seedlings from 2 July; plant into a greenhouse from 13 August; plant out into open ground from 3 September. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Ponto Verde Empório e Hortifrúti (farm shop, 4 km) and Casa das Plantas (garden centre, 6 km); addresses and opening hours are below.
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Pumpkin in Curitiba: soil, season and weather
In Curitiba the soil, not frost, sets the date: the last frost is over around 19 July, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 3 September, 46 days later. Curitiba has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 19 July |
|---|---|
| Top 7 cm of soil at 18 °C | 3 September, 46 days after the last frost |
| Days in the bed to the first harvest (card) | 75 |
| First harvest, if planted in this window | from 17 November |
| Daylight | 10:48 on 23 July, 11:38 on 3 September |
| Watering outdoors when fruiting (card) | every 5 days; the driest month, September, has 10 rainy days |
The same dates in Curitiba hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Watermelon.
Pumpkin in Curitiba: care after planting
Planted on 3 September: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 24 September — feed: nitrogen
Pests and diseases of pumpkin to watch for:
- Bacterial wilt of cucurbits
- Squash bug
- Cucumber beetles
- Blossom-end rot
- Leaf Curl Virus
- Verticillium wilt
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in Curitiba during the pumpkin season
About 763 mm of rain falls in the season; September is the driest month (105 mm) and January the wettest (203 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| September | 22.6 | 12.7 | 105 | 10 | 11:55 |
| October | 22.4 | 14 | 172 | 18 | 12:40 |
| November | 23.4 | 14.7 | 121 | 17 | 13:21 |
| December | 25.4 | 16.8 | 162 | 21 | 13:43 |
| January | 25.5 | 17.8 | 203 | 24 | 13:33 |
ERA5 2016–2025, Open-Meteo
Pumpkin in nearby cities
Around Curitiba, Cascavel is 40 days earlier and Lages 21 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| Ponta Grossa | 97 km | 4 September – 28 February | 1 day later |
| Guarapuava | 221 km | 22 September – 27 February | 19 days later |
| Lages | 286 km | 24 September – 27 February | 21 days later |
| Chapecó | 382 km | 12 September – 27 February | 9 days later |
| Cascavel | 425 km | 25 July – 3 March | 40 days earlier |
| Passo Fundo | 443 km | 8 September – 21 February | 5 days later |
Where to buy pumpkin plants and seeds near Curitiba
Buy plants ready to set out from 3 September (from 13 August for an unheated greenhouse); seed for raising your own is sown from 2 July. Within 15 km of Curitiba OpenStreetMap lists 3 garden centres, 2 farm-supply shops, 1 plant nursery, 31 markets and 2 farm shops (collected 20 October 2026).
- Feirinha do Rebouças (3° Manhã) — market
Tue 06:00–12:00 · 2 km - Ponto Verde Empório e Hortifrúti — farm shop
Rua Murilo do Amaral Ferreira 121, 80620-120 Curitiba · 4 km - Frutas e Verduras Lorena — farm shop
Rua Doutor Motta Júnior 1031 · Mon–Fri 09:00–18:00; Sat 09:00–16:00 · 14 km - Casa das Plantas — garden centre
Avenida Cândido Hartmann 4405 · 6 km · casadasplantas.com.br
Places: © OpenStreetMap contributors, ODbL.
- How to grow pumpkin
- All frost dates and weather of Curitiba
- Shops and markets: Curitiba
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant pumpkins in Curitiba?
In Curitiba, pumpkin: sow for seedlings from 2 July; plant into a greenhouse from 13 August; plant out into open ground from 3 September. There is no autumn frost here, so the frost dates set no end to the window.
When to sow pumpkins for seedlings in Curitiba?
Sow for seedlings from 2 July.
