GreenlyWhen to plant tomatoes in San Miguel de Tucumán: from 16 August
In San Miguel de Tucumán, tomato: sow for seedlings from 4 June; plant into a greenhouse from 26 July; plant out into open ground from 16 August. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Alfredo Palacios (farm supply, 5 km); addresses and opening hours are below.
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Tomato in San Miguel de Tucumán: soil, season and weather
In San Miguel de Tucumán the soil, not frost, sets the date: the last frost is over around 20 July, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 16 August, 27 days later. San Miguel de Tucumán has no autumn frost in the median year, so frost does not end the season.
| Last spring frost | 20 July |
|---|---|
| Top 7 cm of soil at 15 °C | 16 August, 27 days after the last frost |
| Into an unheated greenhouse | from 26 July; July outside: 7.2 °C at night, 17.7 °C by day; card 16–27 °C |
| Days in the bed to the first harvest (card) | 70 |
| First harvest, if planted in this window | from 25 October |
| Daylight | 10:27 on 25 June, 11:11 on 16 August |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, August, has 2 rainy days |
Tomato in San Miguel de Tucumán: care after planting
Planted on 16 August: in the first weeks water every 4 days.
Feeding, by the card’s schedule from that day:
- 16 August — feed: balanced (NPK)
- 13 September — feed: nitrogen
Pests and diseases of tomato to watch for:
- Bacterial canker of tomato
- Tomato leaf mould
- Late Blight
- Bacterial spot
- Fruit cracking
- Bacterial wilt (brown rot of potato)
Dates count from the first planting day of the window above; a later planting moves them by as many days.
Weather in San Miguel de Tucumán during the tomato season
Days average above the tomato card's 16–27 °C in November (28.8 °C), December (29.4 °C) and January (29.7 °C). Nights average below 16 °C in August (8.4 °C), September (11.6 °C) and October (14.6 °C).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| August | 21.3 | 8.4 | 9 | 2 | 11:09 |
| September | 24.8 | 11.6 | 28 | 4 | 11:55 |
| October | 26.8 | 14.6 | 81 | 10 | 12:42 |
| November | 28.8 | 17.3 | 137 | 12 | 13:26 |
| December | 29.4 | 19.1 | 156 | 13 | 13:49 |
| January | 29.7 | 20.2 | 231 | 16 | 13:39 |
ERA5 2016–2025, Open-Meteo
Tomato in nearby cities
Around San Miguel de Tucumán, San Fernando del Valle de Catamarca is 23 days earlier and Salta 26 days later.
| City | Distance | Date | Difference |
|---|---|---|---|
| San Fernando del Valle de Catamarca | 193 km | 24 July – 8 March | 23 days earlier |
| Salta | 225 km | 11 September – 9 March | 26 days later |
| San Salvador de Jujuy | 291 km | 25 August – 4 March | 9 days later |
| La Rioja | 331 km | 7 August – 23 February | 9 days earlier |
| Copiapó | 510 km | 9 August – 3 March | 7 days earlier |
| Córdoba | 522 km | 31 August – 23 February | 15 days later |
Where to buy tomato plants and seeds near San Miguel de Tucumán
Buy plants ready to set out from 16 August (from 26 July for an unheated greenhouse); seed for raising your own is sown from 4 June. Within 15 km of San Miguel de Tucumán OpenStreetMap lists 2 garden centres, 1 farm-supply shop and 6 markets (collected 20 October 2026).
- Alfredo Palacios — farm supply
Alfredo Palacios 480, 4000 San Miguel de Tucumán · 5 km - Ortega Camiones SA — market
Presidente Juan Domingo Perón, Alderetes · Mon–Fri 08:00–12:00, 15:30–19:30; Sat 08:00–12:00 · 8 km · ortegacamiones.com - Mercado Municipal Tafí Viejo — market
San Martín, 4103 Tafí Viejo · 9 km - El Cristo — garden centre
5 km
Places: © OpenStreetMap contributors, ODbL.
- How to grow tomato
- All frost dates and weather of San Miguel de Tucumán
- Shops and markets: San Miguel de Tucumán
- Selling a surplus in Argentina
- When to plant tomatoes in Argentina
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant tomatoes in San Miguel de Tucumán?
In San Miguel de Tucumán, tomato: sow for seedlings from 4 June; plant into a greenhouse from 26 July; plant out into open ground from 16 August. There is no autumn frost here, so the frost dates set no end to the window.
When to sow tomatoes for seedlings in San Miguel de Tucumán?
Sow for seedlings from 4 June.
