Last and first frost dates in Potenza
Italy
In Potenza the last spring frost usually comes around 15 April and the first autumn frost around 25 November, which leaves about 224 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 29 May to 5 August.
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| Last spring frost | around 15 April |
|---|---|
| First autumn frost | around 25 November |
| Frost-free days | 224 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 is the last frost in Potenza?
The last frost in Potenza usually comes around 15 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 25 March, while corn waits until 9 May. The first autumn frost follows around 25 November, about 224 days later: harvest or cover frost-tender crops before then.
When to sow and plant
| Crop | Sow for seedlings | Plant out in a greenhouse | Open ground |
|---|---|---|---|
| Achocha | 22 February – 17 August | 3 April – 26 September | 24 April – 26 September |
| Ageratum | from 13 March | — | from 29 May |
| Arugula | — | — | sow 25 March – 21 October |
| Basil | 16 April – 23 September | 24 May – 31 October | 14 June – 31 October |
| Beet | — | — | sow 25 March – 26 September |
| Bell Pepper | 25 March – 6 June | 24 May – 5 August | 14 June – 5 August |
| Black-eyed Susan | from 31 January | — | from 24 April |
| Bok Choy | 27 February – 4 October | 3 April – 8 November | 24 April – 8 November |
| Borage | — | — | sow 22 April – 1 October |
| Broad bean | — | — | sow 25 March – 17 August |
| Broccoli | — | — | sow 25 March – 10 August |
| Brussels Sprouts | 18 January – 8 July | 4 March – 22 August | 25 March – 22 August |
| Busy Lizzie | from 28 January | — | from 22 April |
| Cabbage | — | — | sow 25 March – 18 July |
| Calendula | — | — | sow from 25 March |
| Carrot | — | — | sow 25 March – 2 September |
| Cauliflower | 21 January – 10 August | 4 March – 21 September | 25 March – 21 September |
| Celeriac | 16 January – 7 June | 3 April – 23 August | 24 April – 23 August |
| Celery | 16 January – 17 June | 3 April – 2 September | 24 April – 2 September |
| Celosia | from 27 March | from 11 May | from 1 June |
| Chamomile | — | — | sow 25 March – 21 September |
| Chayote | 20 January – 31 May | 18 April – 27 August | 9 May – 27 August |
| Chickpea | — | — | sow 25 March – 7 August |
| Chicory | 7 February – 1 September | — | 25 March – 26 September |
| Chili Pepper | 25 March – 13 July | 24 May – 11 September | 14 June – 11 September |
| China aster | from 2 April | from 24 May | from 14 June |
| Chives | — | — | sow 25 March – 12 September |
| Cilantro | — | — | sow 25 March – 22 September |
| Corn | — | — | sow 9 May – 7 August |
| Corn poppy | — | — | sow from 25 March |
| Cosmos | from 27 March | from 11 May | from 1 June |
| Cucumber | 26 April – 13 August | 24 May – 10 September | 14 June – 10 September |
| Daikon | — | — | sow 25 March – 19 September |
| Delphinium | from 4 January | — | from 25 March |
| Dill | — | — | sow 25 March – 2 October |
| Edging lobelia | from 30 January | — | from 24 April |
| Eggplant | 25 March – 6 June | 24 May – 5 August | 14 June – 5 August |
| Florence fennel | 17 February – 17 August | 3 April – 1 October | 24 April – 1 October |
| Foxglove | from 17 December | — | from 25 March |
| Garden sorrel | — | — | sow 25 March – 20 September |
| Green Beans | — | — | sow 1 June – 15 August |
| Hollyhock | — | — | sow from 25 March |
| Hyssop | — | — | sow 25 March – 13 August |
| Kale | — | — | sow 25 March – 14 September |
| Kiwano | 6 April – 20 August | 8 May – 21 September | 29 May – 21 September |
| Kohlrabi | — | — | sow 25 March – 24 September |
| Leek | 24 December – 29 May | 4 March – 7 August | 25 March – 7 August |
| Lemon balm | — | — | sow 25 March – 16 September |
| Lettuce | — | — | sow 25 March – 29 September |
| Lisianthus | from 7 December | from 4 March | from 25 March |
| Lovage | — | — | sow from 25 March |
| Luffa | 12 April – 14 June | 24 May – 26 July | 14 June – 26 July |
| Marigold | from 20 February | from 3 April | from 24 April |
| Marjoram | 25 March – 1 September | — | 14 June – 31 October |
| Melon | 26 April – 31 July | 24 May – 28 August | 14 June – 28 August |
| Microgreens | — | — | sow 1 June – 11 November |
| Moringa | 7 April – 6 September | 1 June – 31 October | 22 June – 31 October |
| Moss rose | from 4 February | — | from 22 April |
| Mustard greens | — | — | sow 25 March – 11 October |
| Napa cabbage | 1 March – 11 September | 3 April – 14 October | 24 April – 14 October |
| Nasturtium | from 24 February | from 3 April | from 24 April |
| Okra | 12 April – 25 August | 24 May – 6 October | 14 June – 6 October |
| Oregano | 3 January – 22 August | 4 March – 21 October | 25 March – 21 October |
| Pansy | from 7 January | from 4 March | from 25 March |
| Parsley | — | — | sow 25 March – 10 September |
| Parsnip | — | — | sow 25 March – 30 July |
| Peanut | 17 April – 21 July | 24 May – 27 August | 14 June – 27 August |
| Peas | — | — | sow 25 March – 12 September |
| Petunia | from 22 March | from 24 May | from 14 June |
| Physalis | 24 March – 18 July | 8 May – 1 September | 29 May – 1 September |
| Pumpkin | 12 April – 19 June | 24 May – 31 July | 14 June – 31 July |
| Purple coneflower | from 1 January | — | from 25 March |
| Radish | — | — | sow 25 March – 26 October |
| Sage | 14 January – 18 August | 4 March – 6 October | 25 March – 6 October |
| Scarlet sage | from 17 March | — | from 29 May |
| Snapdragon | from 29 December | from 4 March | from 25 March |
| Soybean | — | — | sow 14 June – 6 September |
| Spinach | — | — | sow 25 March – 1 October |
| Stevia | 20 March – 9 July | 8 May – 27 August | 29 May – 27 August |
| Stock | — | — | sow from 25 March |
| Sunflower | — | — | sow from 1 June |
| Sweet alyssum | — | — | sow from 25 March |
| Sweet Corn | 31 March – 1 September | 22 April – 23 September | 13 May – 23 September |
| Sweet pea | from 21 January | from 4 March | from 25 March |
| Sweet William | — | — | sow from 25 March |
| Swiss Chard | — | — | sow 25 March – 26 September |
| Thyme | — | — | sow 25 March – 7 August |
| Tomato | 17 March – 14 June | 8 May – 5 August | 29 May – 5 August |
| Turnip | — | — | sow 25 March – 28 September |
| Watercress | — | — | sow 25 March – 9 October |
| Watermelon | 26 April – 19 July | 24 May – 16 August | 14 June – 16 August |
| Zinnia | from 27 April | from 1 June | from 22 June |
| Zucchini | 3 May – 18 August | 24 May – 8 September | 14 June – 8 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. 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.
When the soil warms up in Potenza
The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 9 days after the last spring frost and 15 °C 44 days after it.
| Soil | Date | Against the last spring frost |
|---|---|---|
| 5 °C | 21 January | 84 days earlier |
| 10 °C | 24 April | 9 days later |
| 15 °C | 29 May | 44 days later |
| 18 °C | 14 June | 60 days later |
Frost dates near Potenza
Of the nearest cities on our list, the last spring frost ends earliest in Taranto (13 February) and latest in Salerno (8 March).
Seeds, seedlings and markets in Potenza
Within 15 km of Potenza OpenStreetMap lists 2 garden centres, 1 market and 1 farm shop (collected 27 October 2026). The nearest garden centre to the city centre is Olimpo Verde, 6 km away.
- Olimpo Verde — garden centre
Via Madonna del Carmine 294 · 6 km · olimpoverde.it
Places: © OpenStreetMap contributors, ODbL.
What to grow at home in winter in Potenza
Frosts in Potenza usually come from about 25 November to about 15 April. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.
Potenza: weather for the next 7 days
Forecast by Open-Meteo. Nights at or below 0 °C are marked as frost.
Weather in Potenza by month
Average weather in Potenza over 2016–2025: the warmest month is July. Months that average 20 °C or more by day: June–September (21.6–27.4 °C). Nights average below 0 °C in January (-1.4 °C) and February (-0.3 °C). About 789 mm of rain falls in a year, on 120 days; November is the wettest month (103 mm) and July the driest (29 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days |
|---|---|---|---|---|
| January | 5.8 | -1.4 | 95 | 12 |
| February | 8.2 | -0.3 | 67 | 10 |
| March | 9.9 | 0.5 | 87 | 13 |
| April | 13.7 | 3.4 | 61 | 11 |
| May | 17.5 | 7.3 | 83 | 13 |
| June | 24.2 | 12.3 | 47 | 8 |
| July | 27.4 | 14.9 | 29 | 5 |
| August | 26.8 | 14.9 | 37 | 7 |
| September | 21.6 | 11.3 | 54 | 8 |
| October | 17 | 7.7 | 60 | 9 |
| November | 11.6 | 4.1 | 103 | 14 |
| December | 7.8 | 0.6 | 66 | 10 |
Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).
Planted in autumn
| Crop | When to plant |
|---|---|
| Bearded Iris | by 26 October |
| Crocus | 26 October – end of December |
| Daffodil | 26 October – end of December |
| Garlic | 26 October – end of December |
| Grape hyacinth | by 26 October |
| Hellebore | by 26 October |
| Hyacinth | 26 October – end of December |
| Lily | by 26 October |
| Ornamental onion | by 26 October |
| Peony | by 26 October |
| Saffron | by 26 October |
| Snowdrop | by 26 October |
| Tulip | 26 October – end of December |
| Wild garlic | by 26 October |
From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).