When to plant tomatoes in Ulan-Ude: 2 June – 9 June

In Ulan-Ude, tomato: sow for seedlings from 21 March to 18 April; plant into a greenhouse from 12 May to 9 June; plant out into open ground from 2 June to 9 June. For plants and seeds, the places nearby include Сагаан Дали (farm shop, 6 km); addresses and opening hours are below.

Tomato in Ulan-Ude: soil, season and weather

In Ulan-Ude the soil, not frost, sets the date: the last frost is over around 13 May, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 2 June, 20 days later. 119 days separate planting out (2 June) from the first autumn frost (29 September); the card's 70 days to the first harvest leave 49 for picking, so a start 7 weeks late would still fit.

Last spring frost	13 May
Top 7 cm of soil at 15 °C	2 June, 20 days after the last frost
Into an unheated greenhouse	12 May – 9 June; May outside: 4.3 °C at night, 17.5 °C by day; card 16–27 °C
First autumn frost	29 September, 119 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	11 August – 18 August
Days left for picking	49
Daylight	13:36 on 11 April, 16:23 on 2 June
Watering outdoors when fruiting (card)	every 3 days; the driest month, June, has 7 rainy days

Tomato in Ulan-Ude: care after planting

Planted on 2 June: in the first weeks water every 4 days.

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

2 June — feed: balanced (NPK)
30 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 Ulan-Ude during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, July, averages 26.9 °C. Nights average below 16 °C in every month of the season, from 6.2 °C to 15.6 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	24.8	12.4	37	7	16:40
July	26.9	15.6	63	10	16:15
August	23.5	13.2	73	10	14:41
September	16.6	6.2	40	9	12:43

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Ulan-Ude, Irkutsk is 7 days earlier and Chita 9 days later.

City	Distance	Date	Difference
Irkutsk	231 km	26 May – 10 June	7 days earlier
Chita	404 km	11 June – 15 July	9 days later
Krasnoyarsk	1,069 km	10 June – 19 July	8 days later
Novokuznetsk	1,387 km	5 June – 10 June	3 days later
Blagoveshchensk	1,399 km	7 June – 13 June	5 days later
Kemerovo	1,465 km	31 May – 6 June	2 days earlier

Where to buy tomato plants and seeds near Ulan-Ude

Buy plants ready to set out from 2 June to 9 June (from 12 May to 9 June for an unheated greenhouse); seed for raising your own is sown from 21 March to 18 April. Within 15 km of Ulan-Ude OpenStreetMap lists 1 garden centre and 1 farm shop (collected 27 October 2026).

Сагаан Дали — farm shop
Зеленоградская улица 3А · 6 km
Семена — garden centre
11 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