GreenlyWhen to plant eggplants in Posadas: from 25 July
In Posadas, eggplant: sow for seedlings from 5 May; plant into a greenhouse from 4 July; plant out into open ground from 25 July. There is no autumn frost here, so the frost dates set no end to the window.
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Eggplant in Posadas: soil, season and weather
In Posadas frost, not soil, sets the date: the top 7 cm of soil warms to 18 °C — the minimum on the eggplant card — around 19 July, 1 day after the last frost on 18 July, so planting waits only for the week after that frost. Posadas has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 18 July |
|---|---|
| Top 7 cm of soil at 18 °C | 19 July, 1 day after the last frost |
| Into an unheated greenhouse | from 4 July; July outside: 11.8 °C at night, 21.2 °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 3 October |
| Daylight | 10:36 on 26 May, 10:42 on 25 July |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, July, has 6 rainy days |
The same dates in Posadas hold for Tomato, Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.
Eggplant in Posadas: care after planting
Planted on 25 July: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 25 July — feed: balanced (NPK)
- 22 August — feed: nitrogen
Pests and diseases of eggplant to watch for:
- Bacterial wilt (brown rot of potato)
- Colorado Potato Beetle
- Early Blight
- Tomato hornworm
- Tomato russet mite
- Blossom-end rot
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in Posadas during the eggplant season
Days average above the eggplant card's 21–29 °C in December (30.7 °C). Nights average below 21 °C in every month of the season, from 11.8 °C to 20.6 °C.
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| July | 21.2 | 11.8 | 80 | 6 | 10:34 |
| August | 22.8 | 12.7 | 91 | 7 | 11:08 |
| September | 25.2 | 15.1 | 138 | 9 | 11:54 |
| October | 26.6 | 17 | 224 | 13 | 12:43 |
| November | 28.8 | 18.5 | 193 | 11 | 13:28 |
| December | 30.7 | 20.6 | 134 | 11 | 13:51 |
ERA5 2016–2025, Open-Meteo
Eggplant in nearby cities
1 of the nearest cities share Posadas's date.
| City | Distance | Date | Difference |
|---|---|---|---|
| Santa Maria | 328 km | 14 August – 21 February | 20 days later |
| Chapecó | 328 km | 12 September – 3 March | 49 days later |
| Passo Fundo | 358 km | 8 September – 26 February | 45 days later |
| Cascavel | 365 km | 25 July – 8 March | same day |
| Rivera | 392 km | 28 September – 18 February | 65 days later |
| Tacuarembó | 480 km | 14 October – 22 February | 81 days later |
Where to buy eggplant plants and seeds near Posadas
Buy plants ready to set out from 25 July (from 4 July for an unheated greenhouse); seed for raising your own is sown from 5 May. Within 15 km of Posadas OpenStreetMap lists 8 garden centres, 1 farm-supply shop, 3 plant nurseries and 24 markets (collected 27 October 2026).
- Feria Franca Santa Rita — market
Avenida Chacabuco 6101, 3300 Posadas · Wed 06:00–12:00; Sun 06:00–12:00 · 2 km - Feria Franca Mercado de Villa Urquiza — market
Avenida Cabred 2301, 3300 Posadas · Fri 18:00–22:00; Sat 06:00–12:00 · 2 km - Feria Franca Partido Justicialista — market
Avenida López y Planes 2964, 3300 Posadas · Sun 06:00–12:00 · 2 km - Feria Franca Posadas — market
Avenida Centenario 3600, 3300 Posadas · Wed 06:00–12:00; Sun 06:00–12:00 · 3 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow eggplant
- All frost dates and weather of Posadas
- Shops and markets: Posadas
- Selling a surplus in Argentina
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant eggplants in Posadas?
In Posadas, eggplant: sow for seedlings from 5 May; plant into a greenhouse from 4 July; plant out into open ground from 25 July. There is no autumn frost here, so the frost dates set no end to the window.
When to sow eggplants for seedlings in Posadas?
Sow for seedlings from 5 May.
