Greenly Garden

Last and first frost dates in The Hague

Netherlands

In The Hague the last spring frost usually comes around 10 April and the first autumn frost around 23 November, which leaves about 227 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 16 May to 3 August.

Last spring frostaround 10 April
First autumn frostaround 23 November
Frost-free days227 days

Median of 2016–2025 for the 25 km grid cell of the city: the last day at or below 0 °C in spring and the first in autumn (ERA5 reanalysis via Open-Meteo). In a cold year a frost can come a week or two later — Greenly warns 48 hours ahead.

When is the last frost in The Hague?

The last frost in The Hague usually comes around 10 April: that is the median of 2016–2025, so in about half of those years the last night at or below 0 °C came later. Hardy crops start before it and frost-tender ones only after it: in the table below arugula can go into open ground from 20 March, while corn waits until 21 April. The first autumn frost follows around 23 November, about 227 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha15 February – 15 August27 March – 24 September17 April – 24 September
Ageratumfrom 28 February—from 16 May
Arugula——sow 20 March – 19 October
Basil19 April – 21 September27 May – 29 October17 June – 29 October
Beet——sow 20 March – 24 September
Bell Pepper28 March – 4 June27 May – 3 August17 June – 3 August
Black-eyed Susanfrom 24 January—from 17 April
Bok Choy20 February – 2 October27 March – 6 November17 April – 6 November
Borage——sow 17 April – 29 September
Broad bean——sow 20 March – 15 August
Broccoli——sow 20 March – 8 August
Brussels Sprouts13 January – 6 July27 February – 20 August20 March – 20 August
Busy Lizziefrom 23 January—from 17 April
Cabbage——sow 20 March – 16 July
Calendula——sow from 20 March
Carrot——sow 20 March – 31 August
Cauliflower16 January – 8 August27 February – 19 September20 March – 19 September
Celeriac9 January – 5 June27 March – 21 August17 April – 21 August
Celery9 January – 15 June27 March – 31 August17 April – 31 August
Celosiafrom 20 Marchfrom 4 Mayfrom 25 May
Chamomile——sow 20 March – 19 September
Chayote2 January – 29 May31 March – 25 August21 April – 25 August
Chickpea——sow 20 March – 5 August
Chicory2 February – 30 August—20 March – 24 September
Chili Pepper28 March – 11 July27 May – 9 September17 June – 9 September
China asterfrom 5 Aprilfrom 27 Mayfrom 17 June
Chives——sow 20 March – 10 September
Cilantro——sow 20 March – 20 September
Corn——sow 21 April – 5 August
Corn poppy——sow from 20 March
Cosmosfrom 20 Marchfrom 4 Mayfrom 25 May
Cucumber29 April – 11 August27 May – 8 September17 June – 8 September
Daikon——sow 20 March – 17 September
Delphiniumfrom 30 December—from 20 March
Dill——sow 20 March – 30 September
Edging lobeliafrom 23 January—from 17 April
Eggplant28 March – 4 June27 May – 3 August17 June – 3 August
Florence fennel10 February – 15 August27 March – 29 September17 April – 29 September
Foxglovefrom 12 December—from 20 March
Garden sorrel——sow 20 March – 18 September
Green Beans——sow 25 May – 13 August
Hollyhock——sow from 20 March
Hyssop——sow 20 March – 11 August
Kale——sow 20 March – 12 September
Kiwano24 March – 18 August25 April – 19 September16 May – 19 September
Kohlrabi——sow 20 March – 22 September
Leek19 December – 27 May27 February – 5 August20 March – 5 August
Lemon balm——sow 20 March – 14 September
Lettuce——sow 20 March – 27 September
Lisianthusfrom 2 Decemberfrom 27 Februaryfrom 20 March
Lovage——sow from 20 March
Luffa15 April – 12 June27 May – 24 July17 June – 24 July
Marigoldfrom 13 Februaryfrom 27 Marchfrom 17 April
Marjoram28 March – 30 August—17 June – 29 October
Melon29 April – 29 July27 May – 26 August17 June – 26 August
Microgreens——sow 25 May – 9 November
Moringa12 April – 4 September6 June – 29 October27 June – 29 October
Moss rosefrom 30 January—from 17 April
Mustard greens——sow 20 March – 9 October
Napa cabbage22 February – 9 September27 March – 12 October17 April – 12 October
Nasturtiumfrom 17 Februaryfrom 27 Marchfrom 17 April
Okra15 April – 23 August27 May – 4 October17 June – 4 October
Oregano29 December – 20 August27 February – 19 October20 March – 19 October
Pansyfrom 2 Januaryfrom 27 Februaryfrom 20 March
Parsley——sow 20 March – 8 September
Parsnip——sow 20 March – 28 July
Peanut20 April – 19 July27 May – 25 August17 June – 25 August
Peas——sow 20 March – 10 September
Petuniafrom 25 Marchfrom 27 Mayfrom 17 June
Physalis11 March – 16 July25 April – 30 August16 May – 30 August
Pumpkin15 April – 17 June27 May – 29 July17 June – 29 July
Purple coneflowerfrom 27 December—from 20 March
Radish——sow 20 March – 24 October
Sage9 January – 16 August27 February – 4 October20 March – 4 October
Scarlet sagefrom 4 March—from 16 May
Snapdragonfrom 24 Decemberfrom 27 Februaryfrom 20 March
Soybean——sow 17 June – 4 September
Spinach——sow 20 March – 29 September
Stevia7 March – 7 July25 April – 25 August16 May – 25 August
Stock——sow from 20 March
Sunflower——sow from 25 May
Sweet alyssum——sow from 20 March
Sweet Corn22 March – 30 August13 April – 21 September4 May – 21 September
Sweet peafrom 16 Januaryfrom 27 Februaryfrom 20 March
Sweet William——sow from 20 March
Swiss Chard——sow 20 March – 24 September
Thyme——sow 20 March – 5 August
Tomato4 March – 12 June25 April – 3 August16 May – 3 August
Turnip——sow 20 March – 26 September
Watercress——sow 20 March – 7 October
Watermelon29 April – 17 July27 May – 14 August17 June – 14 August
Zinniafrom 2 Mayfrom 6 Junefrom 27 June
Zucchini6 May – 16 August27 May – 6 September17 June – 6 September

Planting out: a week after the last frost once the soil is warm enough for the crop; frost-hardy crops three weeks before it; an unheated greenhouse three weeks earlier. Seedlings are sown so they are ready on that day. 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.

When the soil warms up in The Hague

The day the top 7 cm of soil first averages each temperature over a week, median of 2016–2025 (ERA5 via Open-Meteo). The soil reaches 10 °C 3 days after the last spring frost and 15 °C 36 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C13 April3 days later
15 °C16 May36 days later
18 °C17 June68 days later

Frost dates near The Hague

Of the nearest cities on our list, the last spring frost ends earliest in Haarlem (19 March) and latest in Almere (15 April).

CityDistanceLast spring frostFirst autumn frost
Haarlem41 km19 March30 November
Amsterdam52 km3 April21 November
Utrecht56 km27 March23 November
Almere70 km15 April21 November
Amersfoort75 km10 April21 November

What to grow at home in winter in The Hague

Frosts in The Hague usually come from about 23 November to about 10 April. These plants have indoor care in their Greenly cards and are harvested quickly, so they can be sown on a windowsill in winter.

Weather in The Hague by month

Average weather in The Hague over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June (20.9 °C), July (21.7 °C) and August (22.3 °C). No month averages below 0 °C at night; the coldest nights, in January, average 2.3 °C. About 928 mm of rain falls in a year, on 160 days; October is the wettest month (102 mm) and April the driest (58 mm).

MonthDay, °CNight, °CRain, mmRainy days
January72.38315
February8.32.66812
March10.63.36813
April13.65.35811
May17.596911
June20.912.97012
July21.714.27614
August22.314.77713
September19.712.28612
October15.49.710216
November10.45.38816
December83.68315

Average of the daily highs and lows, rain per month and days with at least 1 mm (ERA5 via Open-Meteo, the same grid cell as the frost dates).

Planted in autumn

CropWhen to plant
Bearded Irisby 24 October
Crocus24 October – end of December
Daffodil24 October – end of December
Garlic24 October – end of December
Grape hyacinthby 24 October
Helleboreby 24 October
Hyacinth24 October – end of December
Lilyby 24 October
Ornamental onionby 24 October
Peonyby 24 October
Saffronby 24 October
Snowdropby 24 October
Tulip24 October – end of December
Wild garlicby 24 October

From a month before the first autumn frost, so the roots grow before winter, to the late-planting limit on each crop’s page (about two weeks before the ground freezes, by ten years of weather).