When to plant watermelons in Lublin: 7 June – 1 August

In Lublin, watermelon: sow for seedlings from 19 April to 4 July; plant into a greenhouse from 17 May to 1 August; plant out into open ground from 7 June to 1 August.

Watermelon in Lublin: soil, season and weather

In Lublin 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 watermelon 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
Into an unheated greenhouse	17 May – 1 August; May outside: 8.4 °C at night, 18.4 °C by day; card 18–35 °C
First autumn frost	10 November, 156 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	5 August – 29 September
Days left for picking	97
Daylight	15:18 on 10 May, 16:25 on 7 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, November, has 10 rainy days

The same dates in Lublin hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Lublin: care after planting

Planted on 7 June: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

7 June — feed: balanced (NPK)

Pests and diseases of watermelon to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Lublin during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 24.6 °C. Months that stay below 18 °C even by day on average: October (13.6 °C) and November (6.9 °C). Nights average below 18 °C in every month of the season, from 1.9 °C to 15 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.7	13.7	69	10	16:34
July	24.4	15	96	14	16:10
August	24.6	14.8	74	11	14:38
September	19.7	11	68	9	12:42
October	13.6	6.4	61	11	10:46
November	6.9	1.9	46	10	8:56

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Lublin, Brest is 3 days earlier and Kovel 1 day later.

City	Distance	Date	Difference
Radom	100 km	7 June – 6 August	same day
Brest	122 km	4 June – 4 August	3 days earlier
Rzeszów	140 km	7 June – 6 August	same day
Kielce	142 km	7 June – 26 July	same day
Kovel	148 km	8 June – 1 August	1 day later
Warsaw	153 km	6 June – 8 August	1 day earlier

Where to buy watermelon plants and seeds near Lublin

Buy plants ready to set out from 7 June to 1 August (from 17 May to 1 August for an unheated greenhouse); seed for raising your own is sown from 19 April to 4 July. Within 15 km of Lublin OpenStreetMap lists 15 garden centres, 3 farm-supply shops and 15 markets (collected 28 October 2026).

Giełda na Kresowej — market
2 km
TARG - Pocztowa — market
2 km
Targ osiedlowy — market
2 km
Targ "Bronowice" — market
2 km

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.

Questions