Buenos Aires: frost dates
Argentina
| Last spring frost | around 14 July |
|---|---|
| First autumn frost | none in ten years |
Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.
When to sow and plant
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Bell Pepper | 4 July | 16 September | 7 October |
| Chili Pepper | 16 July | 28 September | 19 October |
| Corn | — | 30 June | sow 21 July |
| Cucumber | 5 August | 16 September | 7 October |
| Eggplant | 8 July | 16 September | 7 October |
| Green Beans | 24 May | 30 June | 21 July |
| Melon | 26 July | 16 September | 7 October |
| Peas | — | 2 June | sow 23 June |
| Physalis | 28 June | 12 August | 2 September |
| Pumpkin | 6 July | 12 August | 2 September |
| Sweet Corn | — | 30 June | sow 21 July |
| Tomato | 16 June | 12 August | 2 September |
| Watermelon | 15 August | 16 September | 7 October |
| Zucchini | 11 July | 12 August | 2 September |
Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day.
Planted in autumn
A month before the first autumn frost, so the roots grow before winter.