When to plant watermelons in Liverpool: 17 June – 17 August

In Liverpool, watermelon: sow for seedlings from 29 April to 20 July; plant into a greenhouse from 27 May to 17 August; plant out into open ground from 17 June to 17 August.

Watermelon in Liverpool: soil, season and weather

In Liverpool the soil, not frost, sets the date: the last frost is over around 1 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 17 June, 77 days later.

Last spring frost	1 April
Top 7 cm of soil at 18 °C	17 June, 77 days after the last frost
Into an unheated greenhouse	27 May – 17 August; May outside: 8.4 °C at night, 15.9 °C by day; card 18–35 °C
First autumn frost	26 November, 162 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	15 August – 15 October
Days left for picking	103
Daylight	16:07 on 20 May, 17:00 on 17 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, June, has 16 rainy days

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

Watermelon in Liverpool: care after planting

Planted on 17 June: in the first weeks water every 5 days.

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

17 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 Liverpool during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 19.3 °C. Months that stay below 18 °C even by day on average: September (17.4 °C), October (14 °C) and November (10.1 °C). Nights average below 18 °C in every month of the season, from 5.5 °C to 13.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	18.5	11.6	97	16	16:59
July	19.3	13.4	110	18	16:32
August	19.3	13.4	98	17	14:51
September	17.4	11.4	121	16	12:45
October	14	8.9	106	17	10:40
November	10.1	5.5	116	18	8:40

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

All the nearest cities on our list plant watermelon later than Liverpool; the closest date is in Stoke-on-Trent, 3 days later.

City	Distance	Date	Difference
Wrexham	40 km	5 July – 14 August	18 days later
Manchester	50 km	28 June – 5 August	11 days later
Stoke-on-Trent	68 km	20 June – 6 August	3 days later
Bradford	92 km	27 June – 9 August	10 days later
Sheffield	100 km	29 June – 13 August	12 days later
Leeds	104 km	25 June – 14 August	8 days later

Where to buy watermelon plants and seeds near Liverpool

Buy plants ready to set out from 17 June to 17 August (from 27 May to 17 August for an unheated greenhouse); seed for raising your own is sown from 29 April to 20 July. Within 15 km of Liverpool OpenStreetMap lists 21 garden centres, 5 plant nurseries, 9 markets and 3 farm shops (collected 20 October 2026).

Birkenhead Market — market
4 km
Kirkby Market — market
10 km
Monument Place Market — market
1 km
Greatie Market — market
1 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