When to plant watermelons in Troyes: 2 June – 9 August

In Troyes, watermelon: sow for seedlings from 14 April to 12 July; plant into a greenhouse from 12 May to 9 August; plant out into open ground from 2 June to 9 August. For plants and seeds, the places nearby include Kiriel Jardin (garden centre, 2 km) and Jardiland (garden centre, 3 km); addresses and opening hours are below.

Watermelon in Troyes: soil, season and weather

In Troyes the soil, not frost, sets the date: the last frost is over around 4 April, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 2 June, 59 days later.

Last spring frost	4 April
Top 7 cm of soil at 18 °C	2 June, 59 days after the last frost
Into an unheated greenhouse	12 May – 9 August; May outside: 9.3 °C at night, 19.2 °C by day; card 18–35 °C
First autumn frost	18 November, 169 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	31 July – 7 October
Days left for picking	110
Daylight	14:43 on 5 May, 15:50 on 2 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, August, has 9 rainy days

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

Watermelon in Troyes: care after planting

Planted on 2 June: in the first weeks water every 5 days.

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

2 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 Troyes during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 25.7 °C. Months that stay below 18 °C even by day on average: October (17.1 °C) and November (10.8 °C). Nights average below 18 °C in every month of the season, from 4.3 °C to 15.2 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	23.9	13.8	76	12	16:04
July	25.5	15.2	57	8	15:43
August	25.7	15.2	46	9	14:22
September	22.1	12.1	59	10	12:38
October	17.1	9	74	12	10:54
November	10.8	4.3	77	14	9:16

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Troyes, Paris is 4 days earlier and Metz 2 days later.

City	Distance	Date	Difference
Reims	107 km	31 May – 8 August	2 days earlier
Dijon	130 km	31 May – 10 August	2 days earlier
Paris	142 km	29 May – 11 August	4 days earlier
Nancy	160 km	3 June – 8 August	1 day later
Orléans	169 km	2 June – 16 August	same day
Metz	178 km	4 June – 8 August	2 days later

Where to buy watermelon plants and seeds near Troyes

Buy plants ready to set out from 2 June to 9 August (from 12 May to 9 August for an unheated greenhouse); seed for raising your own is sown from 14 April to 12 July. Within 15 km of Troyes OpenStreetMap lists 6 garden centres, 2 markets and 4 farm shops (collected 27 October 2026).

Kiriel Jardin — garden centre
Avenue Michel Baroin 140, 10800 Saint-Julien-les-Villas · Mon–Sat 08:00–12:00, 14:00–18:00 · 2 km
Jardiland — garden centre
Mon–Fri 09:30–12:00, 14:00–19:00; Sat 09:30–19:00; Sun 10:00–12:30, 14:30–18:30 · 3 km · jardiland.com
Les Halles — market
Mon–Thu 08:00–12:45, 15:30–19:00; Fri, Sat 07:00–19:00; Sun 09:00–13:00 · 1 km · troyeslachampagne.com
Marché Isle-Aumont — market
Fri 16:00–19:00 · 10 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.

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