Greenly Garden

Last and first frost dates in Saarbrücken

Germany

In Saarbrücken the last spring frost usually comes around 14 April and the first autumn frost around 18 November, which leaves about 218 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 14 May to 29 July.

Last spring frostaround 14 April
First autumn frostaround 18 November
Frost-free days218 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 Saarbrücken?

The last frost in Saarbrücken usually comes around 14 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 24 March, while corn waits until 21 April. The first autumn frost follows around 18 November, about 218 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha19 February – 10 August31 March – 19 September21 April – 19 September
Ageratumfrom 26 February—from 14 May
Arugula——sow 24 March – 14 October
Basil5 April – 16 September13 May – 24 October3 June – 24 October
Beet——sow 24 March – 19 September
Bell Pepper14 March – 30 May13 May – 29 July3 June – 29 July
Black-eyed Susanfrom 28 January—from 21 April
Bok Choy24 February – 27 September31 March – 1 November21 April – 1 November
Borage——sow 21 April – 24 September
Broad bean——sow 24 March – 10 August
Broccoli——sow 24 March – 3 August
Brussels Sprouts17 January – 1 July3 March – 15 August24 March – 15 August
Busy Lizziefrom 27 January—from 21 April
Cabbage——sow 24 March – 11 July
Calendula——sow from 24 March
Carrot——sow 24 March – 26 August
Cauliflower20 January – 3 August3 March – 14 September24 March – 14 September
Celeriac13 January – 31 May31 March – 16 August21 April – 16 August
Celery13 January – 10 June31 March – 26 August21 April – 26 August
Celosiafrom 15 Marchfrom 29 Aprilfrom 20 May
Chamomile——sow 24 March – 14 September
Chayote2 January – 24 May31 March – 20 August21 April – 20 August
Chickpea——sow 24 March – 31 July
Chicory6 February – 25 August—24 March – 19 September
Chili Pepper14 March – 6 July13 May – 4 September3 June – 4 September
China asterfrom 22 Marchfrom 13 Mayfrom 3 June
Chives——sow 24 March – 5 September
Cilantro——sow 24 March – 15 September
Corn——sow 21 April – 31 July
Corn poppy——sow from 24 March
Cosmosfrom 15 Marchfrom 29 Aprilfrom 20 May
Cucumber15 April – 6 August13 May – 3 September3 June – 3 September
Daikon——sow 24 March – 12 September
Delphiniumfrom 3 January—from 24 March
Dill——sow 24 March – 25 September
Edging lobeliafrom 27 January—from 21 April
Eggplant14 March – 30 May13 May – 29 July3 June – 29 July
Florence fennel14 February – 10 August31 March – 24 September21 April – 24 September
Foxglovefrom 16 December—from 24 March
Garden sorrel——sow 24 March – 13 September
Green Beans——sow 20 May – 8 August
Hollyhock——sow from 24 March
Hyssop——sow 24 March – 6 August
Kale——sow 24 March – 7 September
Kiwano22 March – 13 August23 April – 14 September14 May – 14 September
Kohlrabi——sow 24 March – 17 September
Leek23 December – 22 May3 March – 31 July24 March – 31 July
Lemon balm——sow 24 March – 9 September
Lettuce——sow 24 March – 22 September
Lisianthusfrom 6 Decemberfrom 3 Marchfrom 24 March
Lovage——sow from 24 March
Luffa1 April – 7 June13 May – 19 July3 June – 19 July
Marigoldfrom 17 Februaryfrom 31 Marchfrom 21 April
Marjoram14 March – 25 August—3 June – 24 October
Melon15 April – 24 July13 May – 21 August3 June – 21 August
Microgreens——sow 20 May – 4 November
Moringa1 April – 30 August26 May – 24 October16 June – 24 October
Moss rosefrom 3 February—from 21 April
Mustard greens——sow 24 March – 4 October
Napa cabbage26 February – 4 September31 March – 7 October21 April – 7 October
Nasturtiumfrom 21 Februaryfrom 31 Marchfrom 21 April
Okra1 April – 18 August13 May – 29 September3 June – 29 September
Oregano2 January – 15 August3 March – 14 October24 March – 14 October
Pansyfrom 6 Januaryfrom 3 Marchfrom 24 March
Parsley——sow 24 March – 3 September
Parsnip——sow 24 March – 23 July
Peanut6 April – 14 July13 May – 20 August3 June – 20 August
Peas——sow 24 March – 5 September
Petuniafrom 11 Marchfrom 13 Mayfrom 3 June
Physalis9 March – 11 July23 April – 25 August14 May – 25 August
Pumpkin1 April – 12 June13 May – 24 July3 June – 24 July
Purple coneflowerfrom 31 December—from 24 March
Radish——sow 24 March – 19 October
Sage13 January – 11 August3 March – 29 September24 March – 29 September
Scarlet sagefrom 2 March—from 14 May
Snapdragonfrom 28 Decemberfrom 3 Marchfrom 24 March
Soybean——sow 3 June – 30 August
Spinach——sow 24 March – 24 September
Stevia5 March – 2 July23 April – 20 August14 May – 20 August
Stock——sow from 24 March
Sunflower——sow from 20 May
Sweet alyssum——sow from 24 March
Sweet Corn18 March – 25 August9 April – 16 September30 April – 16 September
Sweet peafrom 20 Januaryfrom 3 Marchfrom 24 March
Sweet William——sow from 24 March
Swiss Chard——sow 24 March – 19 September
Thyme——sow 24 March – 31 July
Tomato2 March – 7 June23 April – 29 July14 May – 29 July
Turnip——sow 24 March – 21 September
Watercress——sow 24 March – 2 October
Watermelon15 April – 12 July13 May – 9 August3 June – 9 August
Zinniafrom 21 Aprilfrom 26 Mayfrom 16 June
Zucchini22 April – 11 August13 May – 1 September3 June – 1 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 Saarbrücken

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 6 days before the last spring frost and 15 °C 30 days after it.

SoilDateAgainst the last spring frost
5 °C11 January93 days earlier
10 °C8 April6 days earlier
15 °C14 May30 days later
18 °C3 June50 days later

Frost dates near Saarbrücken

Of the nearest cities on our list, the last spring frost ends earliest in Nancy (13 April) and latest in Trier (20 April).

CityDistanceLast spring frostFirst autumn frost
Metz60 km15 April17 November
Trier63 km20 April18 November
Luxembourg75 km15 April18 November
Esch-sur-Alzette79 km16 April18 November
Nancy86 km13 April17 November

Seeds, seedlings and markets in Saarbrücken

Within 15 km of Saarbrücken OpenStreetMap lists 15 garden centres, 2 plant nurseries, 10 markets and 13 farm shops (collected 28 October 2026). The nearest garden centre to the city centre is Der Stadtgarten, 1 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Saarbrücken

Frosts in Saarbrücken usually come from about 18 November to about 14 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 Saarbrücken by month

Average weather in Saarbrücken over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: June–September (20.6–24.8 °C). Nights average below 0 °C in January (-0.2 °C). About 934 mm of rain falls in a year, on 148 days; January is the wettest month (101 mm) and April the driest (59 mm).

MonthDay, °CNight, °CRain, mmRainy days
January5-0.210115
February7.717712
March10.92.37713
April14.54.75911
May18.78.97811
June23.513.57812
July24.614.56611
August24.814.96512
September20.611.37310
October15.488513
November8.93.48514
December6.11.39014

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 19 October
Crocus19 October – end of December
Daffodil19 October – end of December
Garlic19 October – end of December
Grape hyacinthby 19 October
Helleboreby 19 October
Hyacinth19 October – end of December
Lilyby 19 October
Ornamental onionby 19 October
Peonyby 19 October
Saffronby 19 October
Snowdropby 19 October
Tulip19 October – end of December
Wild garlicby 19 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).