When to plant tomatoes in Cluj-Napoca: 20 May – 20 July

In Cluj-Napoca, tomato: sow for seedlings from 8 March to 29 May; plant into a greenhouse from 29 April to 20 July; plant out into open ground from 20 May to 20 July. For plants and seeds, the places nearby include Flower Time (garden centre, 4 km) and Nea Garden Center (garden centre, 7 km); addresses and opening hours are below.

Tomato in Cluj-Napoca: soil, season and weather

In Cluj-Napoca the soil, not frost, sets the date: the last frost is over around 17 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 20 May, 33 days later.

Last spring frost	17 April
Top 7 cm of soil at 15 °C	20 May, 33 days after the last frost
Into an unheated greenhouse	29 April – 20 July; April outside: 4.5 °C at night, 15.8 °C by day; card 16–27 °C
First autumn frost	9 November, 173 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	29 July – 28 September
Days left for picking	103
Daylight	12:38 on 29 March, 15:13 on 20 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, October, has 8 rainy days

Tomato in Cluj-Napoca: care after planting

Planted on 20 May: in the first weeks water every 4 days.

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

20 May — feed: balanced (NPK)
17 June — 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 Cluj-Napoca during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, August, averages 26.8 °C. Months that stay below 16 °C even by day on average: October (15.8 °C) and November (9.5 °C). Nights average below 16 °C in every month of the season, from 2 °C to 15.3 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.5	9	82	14	15:01
June	24.6	14	103	14	15:50
July	26.1	15.2	83	12	15:31
August	26.8	15.3	57	8	14:15
September	21.7	11.4	64	8	12:37
October	15.8	6.2	48	8	10:58
November	9.5	2	55	10	9:25

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Cluj-Napoca, Uzhhorod is 12 days earlier and Drohobych 10 days later.

City	Distance	Date	Difference
Mukachevo	197 km	26 May – 3 July	6 days later
Uzhhorod	227 km	8 May – 11 July	12 days earlier
Chernivtsi	245 km	15 May – 1 July	5 days earlier
Ivano-Frankivsk	253 km	20 May – 30 June	same day
Kalush	257 km	23 May – 30 June	3 days later
Drohobych	287 km	30 May – 1 July	10 days later

Where to buy tomato plants and seeds near Cluj-Napoca

Buy plants ready to set out from 20 May to 20 July (from 29 April to 20 July for an unheated greenhouse); seed for raising your own is sown from 8 March to 29 May. Within 15 km of Cluj-Napoca OpenStreetMap lists 4 garden centres, 2 farm-supply shops, 1 plant nursery, 13 markets and 2 farm shops (collected 28 October 2026).

Nea Garden Center — garden centre
Strada Avram Iancu 322, Florești · 7 km
Flower Time — garden centre
Mon–Sun 09:00–19:00; public holidays closed · 4 km
Piața Zorilor — market
Strada Luceafărului 2, Cluj-Napoca · Mon–Sat 07:00–22:00; Sun 08:00–21:00 · 2 km
Piața agroalimentară Flora — market
Aleea Padin 15, Cluj-Napoca · Mon–Sat 07:00–21:00; Sun 07:00–14:00 · 3 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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