GreenlyLa Plata: frost dates
Argentina
In La Plata the last spring frost usually comes around 30 July and the first autumn frost around 17 June, which leaves about 322 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground around 19 September.
| Last spring frost | around 30 July |
|---|---|
| First autumn frost | around 17 June |
| Frost-free days | 322 days |
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 |
|---|---|---|---|
| Achocha | 6 June | 16 July | 6 August |
| Arugula | — | 18 June | sow 9 July |
| Basil | 22 August | 29 September | 20 October |
| Beet | — | 18 June | sow 9 July |
| Bell Pepper | 17 July | 29 September | 20 October |
| Black-eyed Susan | 5 June | — | 6 August |
| Bok Choy | 11 June | 16 July | 6 August |
| Broad bean | — | 18 June | sow 9 July |
| Broccoli | — | 18 June | sow 9 July |
| Brussels Sprouts | 4 May | 18 June | 9 July |
| Cabbage | — | 18 June | sow 9 July |
| Calendula | — | 18 June | sow 9 July |
| Carrot | — | — | sow 9 July |
| Cauliflower | 7 May | 18 June | 9 July |
| Celeriac | 30 April | 16 July | 6 August |
| Celery | 30 April | 16 July | 6 August |
| Celosia | 22 July | 5 September | 26 September |
| Chamomile | — | 18 June | sow 9 July |
| Chayote | 19 April | 16 July | 6 August |
| Chickpea | — | — | sow 9 July |
| Chili Pepper | 8 August | 21 October | 11 November |
| China aster | 8 August | 29 September | 20 October |
| Chives | — | — | sow 9 July |
| Cilantro | — | 18 June | sow 9 July |
| Corn | — | 16 July | sow 6 August |
| Cosmos | 22 July | 5 September | 26 September |
| Cucumber | 18 August | 29 September | 20 October |
| Daikon | — | 18 June | sow 9 July |
| Delphinium | 11 May | — | 9 July |
| Dill | — | 18 June | sow 9 July |
| Eggplant | 21 July | 29 September | 20 October |
| Florence fennel | 1 June | 16 July | 6 August |
| Garden sorrel | — | 18 June | sow 9 July |
| Green Beans | 9 June | 16 July | 6 August |
| Hyssop | — | — | sow 9 July |
| Kale | — | 18 June | sow 9 July |
| Kiwano | 28 July | 29 August | 19 September |
| Kohlrabi | — | 18 June | sow 9 July |
| Leek | 9 April | 18 June | 9 July |
| Lemon balm | — | 18 June | sow 9 July |
| Lettuce | — | 18 June | sow 9 July |
| Lisianthus | 23 March | 18 June | 9 July |
| Lovage | — | — | sow 9 July |
| Luffa | 18 August | 29 September | 20 October |
| Marigold | 4 June | 16 July | 6 August |
| Melon | 8 August | 29 September | 20 October |
| Microgreens | — | 5 September | sow 26 September |
| Moringa | 27 August | 21 October | 11 November |
| Mustard greens | — | 18 June | sow 9 July |
| Napa cabbage | 13 June | 16 July | 6 August |
| Nasturtium | 8 June | 16 July | 6 August |
| Okra | 18 August | 29 September | 20 October |
| Oregano | 19 April | 18 June | 9 July |
| Pansy | 23 April | 18 June | 9 July |
| Parsley | — | 18 June | sow 9 July |
| Parsnip | — | — | sow 9 July |
| Peanut | 23 August | 29 September | 20 October |
| Peas | — | 18 June | sow 9 July |
| Petunia | 28 July | 29 September | 20 October |
| Physalis | 15 July | 29 August | 19 September |
| Pumpkin | 23 July | 29 August | 19 September |
| Purple coneflower | 8 May | — | 9 July |
| Radish | — | — | sow 9 July |
| Sage | 30 April | 18 June | 9 July |
| Snapdragon | 14 April | 18 June | 9 July |
| Spinach | — | 18 June | sow 9 July |
| Stevia | 11 July | 29 August | 19 September |
| Stock | — | 18 June | sow 9 July |
| Sunflower | — | 5 September | sow 26 September |
| Sweet Corn | — | 16 July | sow 6 August |
| Sweet pea | 7 May | 18 June | 9 July |
| Sweet William | — | — | sow 9 July |
| Swiss Chard | — | 18 June | sow 9 July |
| Thyme | — | 18 June | sow 9 July |
| Tomato | 3 July | 29 August | 19 September |
| Turnip | — | 18 June | sow 9 July |
| Watercress | — | 18 June | sow 9 July |
| Watermelon | 28 August | 29 September | 20 October |
| Zinnia | 16 September | 21 October | 11 November |
| Zucchini | 28 July | 29 August | 19 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.
La Plata: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Planted in autumn
| Crop | Plant around |
|---|---|
| Bearded Iris | 18 May |
| Crocus | 18 May |
| Daffodil | 18 May |
| Garlic | 18 May |
| Hyacinth | 18 May |
| Lily | 18 May |
| Peony | 18 May |
| Saffron | 18 May |
| Tulip | 18 May |
| Wild garlic | 18 May |
A month before the first autumn frost, so the roots grow before winter.