GreenlyWhen to plant zucchini in Kielce: 7 June – 18 August
In Kielce, zucchini: sow for seedlings from 26 April to 28 July; plant into a greenhouse from 17 May to 18 August; plant out into open ground from 7 June to 18 August. For plants and seeds, the places nearby include ACM Agrocentrum (garden centre, 1 km) and Kespar (farm supply, 3 km); addresses and opening hours are below.
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Zucchini in Kielce: soil, season and weather
In Kielce the soil, not frost, sets the date: the last frost is over around 18 April, but the top 7 cm of soil reaches 18 °C — the minimum on the zucchini card — only around 7 June, 50 days later.
| Last spring frost | 18 April |
|---|---|
| Top 7 cm of soil at 18 °C | 7 June, 50 days after the last frost |
| First autumn frost | 4 November, 150 days after the start |
| Days in the bed to the first harvest (card) | 36 |
| First harvest, if planted in this window | 13 July – 23 September |
| Days left for picking | 114 |
| Daylight | 15:36 on 17 May, 16:21 on 7 June |
| Watering outdoors when fruiting (card) | every 3 days; the driest month, November, has 10 rainy days |
The same dates in Kielce hold for Cucumber, Bell Pepper, Eggplant, Pumpkin and Watermelon.
Zucchini in Kielce: care after planting
Planted on 7 June: in the first weeks water every 4 days.
Pests and diseases of zucchini to watch for:
Weather in Kielce during the zucchini season
About 396 mm of rain falls in the season; November is the driest month (46 mm) and July the wettest (79 mm).
| Month | Day, °C | Night, °C | Rain, mm | Rainy days | Daylight on the 15th |
|---|---|---|---|---|---|
| June | 23.7 | 13.5 | 65 | 11 | 16:30 |
| July | 24.5 | 14.8 | 79 | 14 | 16:06 |
| August | 24.7 | 14.7 | 74 | 10 | 14:36 |
| September | 19.7 | 10.9 | 69 | 11 | 12:42 |
| October | 13.8 | 5.9 | 63 | 11 | 10:47 |
| November | 7.1 | 1.4 | 46 | 10 | 8:59 |
ERA5 2016–2025, Open-Meteo
Zucchini in nearby cities
2 of the nearest cities share Kielce's date.
Where to buy zucchini plants and seeds near Kielce
Buy plants ready to set out from 7 June to 18 August (from 17 May to 18 August for an unheated greenhouse); seed for raising your own is sown from 26 April to 28 July. Within 15 km of Kielce OpenStreetMap lists 6 garden centres, 1 farm-supply shop, 6 markets and 3 farm shops (collected 28 October 2026).
- Mój Ogród — garden centre
Mon–Fri 09:00–18:00; Sat 09:00–15:00 · 6 km · mojogrodprojekt.pl - Pro-Agro — garden centre
Mon–Fri 08:00–18:00, Sat 08:00–15:00 · 4 km · proagro-kielce.pl - ACM Agrocentrum — garden centre
Mon–Fri 09:00–17:00; Sat 09:00–14:00 · 1 km - Kespar — farm supply
Przemysłowa 46A, 25-660 Kielce · Mon–Fri 08:00–16:00; Sat 08:00–12:00 · 3 km · kespar.com.pl
Places: © OpenStreetMap contributors, ODbL.
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.
- How to grow zucchini
- All frost dates and weather of Kielce
- Shops and markets: Kielce
- Selling a surplus in Poland
- Kielce: #559 of 801 by frost-free season
- Moon planting calendar for November 2026
- How we calculate the dates
Questions
When to plant zucchini in Kielce?
In Kielce, zucchini: sow for seedlings from 26 April to 28 July; plant into a greenhouse from 17 May to 18 August; plant out into open ground from 7 June to 18 August.
When to sow zucchini for seedlings in Kielce?
Sow for seedlings from 26 April to 28 July.
When is the last spring frost in Kielce?
Last spring frost around 18 April, first autumn frost around 4 November.
