GreenlyWhen to plant pumpkins in Mar del Plata: from 12 November
In Mar del Plata, pumpkin: sow for seedlings from 10 September; plant into a greenhouse from 22 October; plant out into open ground from 12 November. There is no autumn frost here, so the frost dates set no end to the window.
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Pumpkin in Mar del Plata: soil, season and weather
In Mar del Plata the soil, not frost, sets the date: the last frost is over around 15 July, but the top 7 cm of soil reaches 18 °C — the minimum on the pumpkin card — only around 12 November, 120 days later. Mar del Plata has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 15 July |
|---|---|
| Top 7 cm of soil at 18 °C | 12 November, 120 days after the last frost |
| Days in the bed to the first harvest (card) | 75 |
| First harvest, if planted in this window | from 26 January |
| Daylight | 12:28 on 1 October, 14:04 on 12 November |
| Watering outdoors when fruiting (card) | every 5 days; the driest month, January, has 8 rainy days |
The same dates in Mar del Plata hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Watermelon.
Pumpkin in Mar del Plata: care after planting
Planted on 12 November: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 3 December — 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 Mar del Plata during the pumpkin season
About 500 mm of rain falls in the season; January is the driest month (66 mm) and April the wettest (93 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| November | 20.9 | 12.6 | 79 | 9 | 14:10 |
| December | 23.8 | 15 | 91 | 9 | 14:47 |
| January | 25.7 | 17.1 | 66 | 8 | 14:31 |
| February | 24.9 | 17.3 | 92 | 10 | 13:30 |
| March | 22.7 | 15.6 | 79 | 10 | 12:22 |
| April | 19.5 | 13.1 | 93 | 9 | 11:08 |
ERA5 2016–2025, Open-Meteo
Pumpkin in nearby cities
All the nearest cities on our list plant pumpkin earlier than Mar del Plata; the closest date is in Bahía Blanca, 7 days earlier.
| City | Distance | Date | Difference |
|---|---|---|---|
| La Plata | 344 km | 20 October – 20 February | 23 days earlier |
| Buenos Aires | 385 km | from 7 October | 36 days earlier |
| Colonia del Sacramento | 393 km | from 15 October | 28 days earlier |
| Maldonado | 416 km | from 24 October | 19 days earlier |
| Bahía Blanca | 418 km | 5 November – 18 February | 7 days earlier |
| Santa Rosa | 615 km | 22 October – 16 February | 21 days earlier |
Where to buy pumpkin plants and seeds near Mar del Plata
Buy plants ready to set out from 12 November (from 22 October for an unheated greenhouse); seed for raising your own is sown from 10 September. Within 15 km of Mar del Plata OpenStreetMap lists 6 garden centres, 1 farm-supply shop, 17 markets and 2 farm shops (collected 27 October 2026).
- El Caracol — market
5 km - Forrajeria Naty — market
6 km - Dietetica Del Sur — market
7 km - La Esquinita — market
8 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow pumpkin
- All frost dates and weather of Mar del Plata
- Shops and markets: Mar del Plata
- Selling a surplus in Argentina
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant pumpkins in Mar del Plata?
In Mar del Plata, pumpkin: sow for seedlings from 10 September; plant into a greenhouse from 22 October; plant out into open ground from 12 November. There is no autumn frost here, so the frost dates set no end to the window.
When to sow pumpkins for seedlings in Mar del Plata?
Sow for seedlings from 10 September.
