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When to plant tomatoes in Belgium: 10 May – 10 August

Tomato in Belgium: plant out into open ground from 10 May to 10 August; the window opens earliest in Antwerp and closes latest in Bruges (10 cities).

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.

Planting window by climate zone

ZoneCitiesWindow
210–269 frost-free daysBrussels, Antwerp, Ghent, Liège, Charleroi, Namur, Mons, Bruges, Leuven, Hasselt10 May – 10 August

Tomato: the window in each city

CityWindowZone
Antwerp10 May – 2 August210–269 frost-free days
Hasselt10 May – 29 July210–269 frost-free days
Leuven10 May – 2 August210–269 frost-free days
Ghent13 May – 4 August210–269 frost-free days
Bruges16 May – 10 August210–269 frost-free days
Brussels16 May – 2 August210–269 frost-free days
Charleroi16 May – 26 July210–269 frost-free days
Liège16 May – 30 July210–269 frost-free days
Mons16 May – 30 July210–269 frost-free days
Namur16 May – 26 July210–269 frost-free days