When to plant tomatoes in Gaziantep: 13 April – 3 September

In Gaziantep, tomato: sow for seedlings from 30 January to 13 July; plant into a greenhouse from 23 March to 3 September; plant out into open ground from 13 April to 3 September.

Tomato in Gaziantep: soil, season and weather

In Gaziantep the soil, not frost, sets the date: the last frost is over around 22 February, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 13 April, 50 days later.

Last spring frost	22 February
Top 7 cm of soil at 15 °C	13 April, 50 days after the last frost
Into an unheated greenhouse	23 March – 3 September; March outside: 5.4 °C at night, 15 °C by day; card 16–27 °C
First autumn frost	24 December, 255 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	22 June – 12 November
Days left for picking	185
Daylight	11:01 on 20 February, 13:03 on 13 April
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 0 rainy days

Tomato in Gaziantep: care after planting

Planted on 13 April: in the first weeks water every 4 days.

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

13 April — feed: balanced (NPK)
11 May — feed: nitrogen

Pests and diseases of tomato 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 Gaziantep during the tomato season

Days average above the tomato card's 16–27 °C in June–September (32.1–36.9 °C). Months that stay below 16 °C even by day on average: December (10.5 °C). Nights average below 16 °C in April, May and October–December (3.5–14.6 °C).

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
April	21.3	9.9	37	8	13:08
May	26.8	14.6	26	6	14:08
June	33	19.8	4	1	14:42
July	36.9	23.2	1	0	14:29
August	36.9	23.2	1	0	13:37
September	32.1	19.7	2	1	12:27
October	25.1	14.1	18	3	11:17
November	16.4	7.7	56	7	10:12
December	10.5	3.5	85	10	9:38

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Gaziantep, Adana is 25 days earlier and Erzurum 42 days later.

City	Distance	Date	Difference
Adana	183 km	19 March – 25 August	25 days earlier
Kayseri	247 km	9 May – 21 July	26 days later
Diyarbakır	269 km	16 April – 5 August	3 days later
Konya	441 km	21 April – 20 July	8 days later
Erzurum	464 km	25 May – 26 June	42 days later
Samsun	478 km	2 May – 26 August	19 days later

Where to buy tomato plants and seeds near Gaziantep

Buy plants ready to set out from 13 April to 3 September (from 23 March to 3 September for an unheated greenhouse); seed for raising your own is sown from 30 January to 13 July. Within 15 km of Gaziantep OpenStreetMap lists 6 markets and 1 farm shop (collected 28 October 2026).

Metanet Yöresel Ürün Pazarı — market
Şehitler Caddesi · 1 km
Balıkçı Hali — market
4 km
Güvenevler Kapalı Pazar Yeri — market
4 km
Şahinbey Belediyesi Karataş Semt Pazarı — market
7 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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