When to plant tomatoes in Soria: 14 May – 20 July

In Soria, tomato: sow for seedlings from 2 March to 29 May; plant into a greenhouse from 23 April to 20 July; plant out into open ground from 14 May to 20 July.

Tomato in Soria: soil, season and weather

In Soria the soil, not frost, sets the date: the last frost is over around 2 May, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 14 May, 12 days later.

Last spring frost	2 May
Top 7 cm of soil at 15 °C	14 May, 12 days after the last frost
Into an unheated greenhouse	23 April – 20 July; April outside: 3.4 °C at night, 15.2 °C by day; card 16–27 °C
First autumn frost	9 November, 179 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	23 July – 28 September
Days left for picking	109
Daylight	12:16 on 23 March, 14:29 on 14 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, July, has 4 rainy days

Tomato in Soria: care after planting

Planted on 14 May: in the first weeks water every 4 days.

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

14 May — feed: balanced (NPK)
11 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 Soria during the tomato season

Days average above the tomato card's 16–27 °C in July (29.6 °C) and August (29.6 °C). Months that stay below 16 °C even by day on average: November (11.1 °C). Nights average below 16 °C in every month of the season, from 2.6 °C to 14.1 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	19.4	6.5	50	9	14:31
June	25	11.4	52	9	15:12
July	29.6	13.7	17	4	14:56
August	29.6	14.1	17	4	13:54
September	23.1	10.3	33	6	12:32
October	18.5	7.2	48	8	11:08
November	11.1	2.6	53	11	9:51

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Soria, Tudela is 42 days earlier and Burgos 1 day later.

City	Distance	Date	Difference
Logroño	79 km	6 May – 14 August	8 days earlier
Tudela	79 km	2 April – 17 August	42 days earlier
Aranda de Duero	102 km	11 May – 24 July	3 days earlier
Burgos	120 km	15 May – 28 July	1 day later
Vitoria-Gasteiz	122 km	13 May – 4 August	1 day earlier
Zaragoza	132 km	2 April – 30 August	42 days earlier

Where to buy tomato plants and seeds near Soria

Buy plants ready to set out from 14 May to 20 July (from 23 April to 20 July for an unheated greenhouse); seed for raising your own is sown from 2 March to 29 May. Within 15 km of Soria OpenStreetMap lists 2 plant nurseries and 1 market (collected 27 October 2026).

Viveros Ibáñez — plant nursery
5 km · viverosibanez.es
Vivero Forestal — plant nursery
8 km
Mercado Municipal — market
1 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.

Questions