When to plant eggplants in Rivera: 28 September – 18 February

In Rivera, eggplant: sow for seedlings from 9 July to 20 December; plant into a greenhouse from 7 September to 18 February; plant out into open ground from 28 September to 18 February.

Eggplant in Rivera: soil, season and weather

In Rivera the soil, not frost, sets the date: the last frost is over around 30 July, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 28 September, 60 days later.

Last spring frost	30 July
Top 7 cm of soil at 18 °C	28 September, 60 days after the last frost
Into an unheated greenhouse	7 September – 18 February; September outside: 10.9 °C at night, 20.5 °C by day; card 21–29 °C
First autumn frost	9 June, 255 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	7 December – 28 April
Days left for picking	185
Daylight	10:35 on 30 July, 12:17 on 28 September
Watering outdoors when fruiting (card)	every 3 days; the driest month, December, has 8 rainy days

The same dates in Rivera hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant in Rivera: care after planting

Planted on 28 September: in the first weeks water every 4 days.

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

28 September — feed: balanced (NPK)
26 October — 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 Rivera during the eggplant season

Days average above the eggplant card's 21–29 °C in January (29.6 °C) and February (29.3 °C). Months that stay below 21 °C even by day on average: September (20.5 °C), May (19 °C) and June (17.1 °C). Nights average below 21 °C in every month of the season, from 8.8 °C to 19.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
September	20.5	10.9	178	10	11:53
October	23.1	12.8	135	10	12:48
November	26.3	15.1	104	8	13:40
December	28.7	17.6	101	8	14:08
January	29.6	19.4	131	10	13:56
February	29.3	19.1	102	9	13:10
March	27.1	17.3	109	9	12:19
April	23.6	14.6	114	9	11:21
May	19	10.9	132	10	10:34
June	17.1	8.8	101	8	10:09

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Rivera, Posadas is 65 days earlier and Tacuarembó 16 days later.

City	Distance	Date	Difference
Tacuarembó	99 km	14 October – 22 February	16 days later
Santa Maria	214 km	14 August – 21 February	45 days earlier
Salto	236 km	from 22 August	37 days earlier
Paysandú	288 km	21 September – 6 March	7 days earlier
Posadas	392 km	from 25 July	65 days earlier
Passo Fundo	422 km	8 September – 26 February	20 days earlier

Where to buy eggplant plants and seeds near Rivera

Buy plants ready to set out from 28 September to 18 February (from 7 September to 18 February for an unheated greenhouse); seed for raising your own is sown from 9 July to 20 December. Within 15 km of Rivera OpenStreetMap lists 2 markets (collected 28 October 2026).

Camelódromo — market
1 km
Feira Cabotiá — market
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