When to plant eggplants in Liège: 4 June – 30 July

In Liège, eggplant: sow for seedlings from 15 March to 31 May; plant into a greenhouse from 14 May to 30 July; plant out into open ground from 4 June to 30 July. For plants and seeds, the places nearby include Le jardin d'à côté (farm shop, 2 km) and Ferme de la Grande Chevée (farm shop, 12 km); addresses and opening hours are below.

Eggplant in Liège: soil, season and weather

In Liège the soil, not frost, sets the date: the last frost is over around 16 April, but the top 7 cm of soil reaches 18 °C — the minimum on the eggplant card — only around 4 June, 49 days later.

Last spring frost	16 April
Top 7 cm of soil at 18 °C	4 June, 49 days after the last frost
Into an unheated greenhouse	14 May – 30 July; May outside: 8.7 °C at night, 18.6 °C by day; card 21–29 °C
First autumn frost	19 November, 168 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	13 August – 8 October
Days left for picking	98
Daylight	13:09 on 5 April, 16:15 on 4 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, August, has 12 rainy days

The same dates in Liège hold for Cucumber, Bell Pepper, Zucchini, Pumpkin and Watermelon.

Eggplant in Liège: care after planting

Planted on 4 June: in the first weeks water every 4 days.

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

4 June — feed: balanced (NPK)
2 July — feed: nitrogen

Pests and diseases of eggplant 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 Liège during the eggplant season

No month of the season averages above the eggplant card's 21–29 °C by day; the warmest, August, averages 23.5 °C. Months that stay below 21 °C even by day on average: September (20.3 °C), October (15.6 °C) and November (10 °C). Nights average below 21 °C in every month of the season, from 4.5 °C to 14.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	22.5	13.1	84	12	16:27
July	23.3	14	72	13	16:04
August	23.5	14.4	66	12	14:35
September	20.3	11.7	74	12	12:41
October	15.6	9.2	74	13	10:48
November	10	4.5	68	14	9:00

ERA5 2016–2025, Open-Meteo

Eggplant in nearby cities

Around Liège, Hasselt is 5 days earlier and Namur 7 days later.

City	Distance	Date	Difference
Hasselt	37 km	30 May – 29 July	5 days earlier
Namur	53 km	11 June – 26 July	7 days later
Leuven	67 km	31 May – 2 August	4 days earlier
Charleroi	84 km	10 June – 26 July	6 days later
Brussels	89 km	8 June – 2 August	4 days later
Ettelbruck	95 km	6 June – 26 July	2 days later

Where to buy eggplant plants and seeds near Liège

Buy plants ready to set out from 4 June to 30 July (from 14 May to 30 July for an unheated greenhouse); seed for raising your own is sown from 15 March to 31 May. Within 15 km of Liège OpenStreetMap lists 11 garden centres, 3 plant nurseries, 7 markets and 12 farm shops (collected 27 October 2026).

Marché de Herstal — market
Thu 08:00–13:00 · 6 km · herstal.be
Ferme de la Grande Chevée — farm shop
Grande Chevée 25, 4130 · Wed 16:00–19:00; Sat 10:00–16:00 · 12 km
La Ferme d'Artagnan — farm shop
Rue de Tongres 8, 4684 Haccourt · 14 km · lafermedartagnan.be
Le jardin d'à côté — farm shop
Rue Côte d'Or 206, 4000 Liège · 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.

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