When to plant eggplants in Mar del Plata: from 12 November

In Mar del Plata, eggplant: sow for seedlings from 23 August; 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.

Eggplant 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 eggplant 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
Into an unheated greenhouse	from 22 October; October outside: 9.9 °C at night, 17.9 °C by day; card 21–29 °C
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	from 21 January
Daylight	11:44 on 13 September, 14:04 on 12 November
Watering outdoors when fruiting (card)	every 3 days; the driest month, January, has 8 rainy days

The same dates in Mar del Plata hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant 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:

12 November — feed: balanced (NPK)
10 December — feed: nitrogen

Pests and diseases of eggplant 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 Mar del Plata during the eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, January, averages 25.7 °C. Months that stay below 21 °C even by day on average: November (20.9 °C) and April (19.5 °C). Nights average below 21 °C in every month of the season, from 12.6 °C to 17.3 °C.

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

Eggplant in nearby cities

All the nearest cities on our list plant eggplant 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 – 25 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 – 23 February	7 days earlier
Santa Rosa	615 km	22 October – 21 February	21 days earlier

Where to buy eggplant 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 23 August. 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).

Crear — garden centre
8 km
La Pirca Vivero — garden centre
8 km
EGV Deco & Jardín — garden centre
10 km
Tecnoagro - Pauny - Mainero — farm supply
3 km

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