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Last and first frost dates in Trabzon

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In Trabzon the last spring frost usually comes around 13 March and the first autumn frost around 13 December, which leaves about 275 frost-free days (median of 2016–2025). Tomato seedlings can go into open ground from 27 March to 23 August.

Last spring frostaround 13 March
First autumn frostaround 13 December
Frost-free days275 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 Trabzon?

The last frost in Trabzon usually comes around 13 March: 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 February, while corn waits until 20 March. The first autumn frost follows around 13 December, about 275 days later: harvest or cover frost-tender crops before then.

When to sow and plant

CropSow for seedlingsPlant out in a greenhouseOpen ground
Achocha18 January – 4 September27 February – 14 October20 March – 14 October
Ageratumfrom 9 January—from 27 March
Arugula——sow 20 February – 8 November
Basil7 March – 11 October14 April – 18 November5 May – 18 November
Beet——sow 20 February – 14 October
Bell Pepper13 February – 24 June14 April – 23 August5 May – 23 August
Black-eyed Susanfrom 27 December—from 20 March
Bok Choy23 January – 22 October27 February – 26 November20 March – 26 November
Borage——sow 20 March – 19 October
Broad bean——sow 20 February – 4 September
Broccoli——sow 20 February – 28 August
Brussels Sprouts16 December – 26 July30 January – 9 September20 February – 9 September
Busy Lizziefrom 26 December—from 20 March
Cabbage——sow 20 February – 5 August
Calendula——sow from 20 February
Carrot——sow 20 February – 20 September
Cauliflower19 December – 28 August30 January – 9 October20 February – 9 October
Celeriac12 December – 25 June27 February – 10 September20 March – 10 September
Celery12 December – 5 July27 February – 20 September20 March – 20 September
Celosiafrom 6 Februaryfrom 23 Marchfrom 13 April
Chamomile——sow 20 February – 9 October
Chayote1 December – 18 June27 February – 14 September20 March – 14 September
Chickpea——sow 20 February – 25 August
Chicory5 January – 19 September—20 February – 14 October
Chili Pepper13 February – 31 July14 April – 29 September5 May – 29 September
China asterfrom 21 Februaryfrom 14 Aprilfrom 5 May
Chives——sow 20 February – 30 September
Cilantro——sow 20 February – 10 October
Corn——sow 20 March – 25 August
Corn poppy——sow from 20 February
Cosmosfrom 6 Februaryfrom 23 Marchfrom 13 April
Cucumber17 March – 31 August14 April – 28 September5 May – 28 September
Daikon——sow 20 February – 7 October
Delphiniumfrom 2 December—from 20 February
Dill——sow 20 February – 20 October
Edging lobeliafrom 26 December—from 20 March
Eggplant13 February – 24 June14 April – 23 August5 May – 23 August
Florence fennel13 January – 4 September27 February – 19 October20 March – 19 October
Foxglovefrom 14 November—from 20 February
Garden sorrel——sow 20 February – 8 October
Green Beans——sow 13 April – 2 September
Hollyhock——sow from 20 February
Hyssop——sow 20 February – 31 August
Kale——sow 20 February – 2 October
Kiwano2 February – 7 September6 March – 9 October27 March – 9 October
Kohlrabi——sow 20 February – 12 October
Leek21 November – 16 June30 January – 25 August20 February – 25 August
Lemon balm——sow 20 February – 4 October
Lettuce——sow 20 February – 17 October
Lisianthusfrom 4 Novemberfrom 30 Januaryfrom 20 February
Lovage——sow from 20 February
Luffa3 March – 2 July14 April – 13 August5 May – 13 August
Marigoldfrom 16 Januaryfrom 27 Februaryfrom 20 March
Marjoram13 February – 19 September—5 May – 18 November
Melon17 March – 18 August14 April – 15 September5 May – 15 September
Microgreens——sow 13 April – 29 November
Moringa4 March – 24 September28 April – 18 November19 May – 18 November
Moss rosefrom 2 January—from 20 March
Mustard greens——sow 20 February – 29 October
Napa cabbage25 January – 29 September27 February – 1 November20 March – 1 November
Nasturtiumfrom 20 Januaryfrom 27 Februaryfrom 20 March
Okra3 March – 12 September14 April – 24 October5 May – 24 October
Oregano1 December – 9 September30 January – 8 November20 February – 8 November
Pansyfrom 5 Decemberfrom 30 Januaryfrom 20 February
Parsley——sow 20 February – 28 September
Parsnip——sow 20 February – 17 August
Peanut8 March – 8 August14 April – 14 September5 May – 14 September
Peas——sow 20 February – 30 September
Petuniafrom 10 Februaryfrom 14 Aprilfrom 5 May
Physalis20 January – 5 August6 March – 19 September27 March – 19 September
Pumpkin3 March – 7 July14 April – 18 August5 May – 18 August
Purple coneflowerfrom 29 November—from 20 February
Radish——sow 20 February – 13 November
Sage12 December – 5 September30 January – 24 October20 February – 24 October
Scarlet sagefrom 13 January—from 27 March
Snapdragonfrom 26 Novemberfrom 30 Januaryfrom 20 February
Soybean——sow 5 May – 24 September
Spinach——sow 20 February – 19 October
Stevia16 January – 27 July6 March – 14 September27 March – 14 September
Stock——sow from 20 February
Sunflower——sow from 13 April
Sweet alyssum——sow from 20 February
Sweet Corn5 February – 19 September27 February – 11 October20 March – 11 October
Sweet peafrom 19 Decemberfrom 30 Januaryfrom 20 February
Sweet William——sow from 20 February
Swiss Chard——sow 20 February – 14 October
Thyme——sow 20 February – 25 August
Tomato13 January – 2 July6 March – 23 August27 March – 23 August
Turnip——sow 20 February – 16 October
Watercress——sow 20 February – 27 October
Watermelon17 March – 6 August14 April – 3 September5 May – 3 September
Zinniafrom 24 Marchfrom 28 Aprilfrom 19 May
Zucchini24 March – 5 September14 April – 26 September5 May – 26 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 Trabzon

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 56 days before the last spring frost and 15 °C 14 days after it.

SoilDateAgainst the last spring frost
5 °Calready in the first week of January—
10 °C16 January56 days earlier
15 °C27 March14 days later
18 °C5 May53 days later

Frost dates near Trabzon

Of the nearest cities on our list, the last spring frost ends earliest in Zugdidi (9 March) and latest in Erzurum (11 May).

CityDistanceLast spring frostFirst autumn frost
Batumi175 km21 March13 December
Erzurum180 km11 May16 October
Poti205 km17 March18 December
Zugdidi244 km9 March13 December
Kutaisi284 km17 March20 December

Seeds, seedlings and markets in Trabzon

Within 15 km of Trabzon OpenStreetMap lists 1 garden centre, 21 markets and 1 farm shop (collected 28 October 2026). The nearest market to the city centre is Erdoğdu Pazarı, 1 km away.

Places: © OpenStreetMap contributors, ODbL.

What to grow at home in winter in Trabzon

Frosts in Trabzon usually come from about 13 December to about 13 March. 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 Trabzon by month

Average weather in Trabzon over 2016–2025: the warmest month is August. Months that average 20 °C or more by day: May–October (20.2–26.8 °C). No month averages below 0 °C at night; the coldest nights, in January, average 4.2 °C. About 1137 mm of rain falls in a year, on 165 days; September is the wettest month (128 mm) and February the driest (67 mm).

MonthDay, °CNight, °CRain, mmRainy days
January11.34.28413
February11.94.26711
March13.7610415
April17.39.38012
May20.213.110214
June24189915
July2620.610117
August26.821.69017
September24.218.212816
October20.613.911914
November17.59.67810
December13.76.38511

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 13 November
Crocusby 13 November
Daffodilby 13 November
Garlic13 November – end of December
Grape hyacinthby 13 November
Helleboreby 13 November
Hyacinthby 13 November
Lilyby 13 November
Ornamental onionby 13 November
Peonyby 13 November
Saffronby 13 November
Snowdropby 13 November
Tulipby 13 November
Wild garlicby 13 November

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).