When to plant tomatoes in Kaluga: 25 May – 21 June

In Kaluga, tomato: sow for seedlings from 13 March to 30 April; plant into a greenhouse from 4 May to 21 June; plant out into open ground from 25 May to 21 June. For plants and seeds, the places nearby include Гавриш (garden centre, 1 km) and 6 соток (garden centre, 1 km); addresses and opening hours are below.

Tomato in Kaluga: soil, season and weather

In Kaluga the soil, not frost, sets the date: the last frost is over around 28 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 25 May, 27 days later.

Last spring frost	28 April
Top 7 cm of soil at 15 °C	25 May, 27 days after the last frost
Into an unheated greenhouse	4 May – 21 June; May outside: 7 °C at night, 17.6 °C by day; card 16–27 °C
First autumn frost	11 October, 139 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	3 August – 30 August
Days left for picking	69
Daylight	13:10 on 3 April, 16:34 on 25 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, September, has 8 rainy days

Tomato in Kaluga: care after planting

Planted on 25 May: in the first weeks water every 4 days.

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

25 May — feed: balanced (NPK)
22 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 Kaluga during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, July, averages 23.9 °C. Months that stay below 16 °C even by day on average: October (10.2 °C). Nights average below 16 °C in every month of the season, from 3.5 °C to 14.7 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	17.6	7	61	11	16:02
June	22.4	12.3	73	12	17:14
July	23.9	14.7	83	14	16:45
August	23.5	13.6	54	11	14:58
September	17.6	8.8	45	8	12:47
October	10.2	3.5	60	12	10:36

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Kaluga, Moscow is 3 days earlier and Tula 2 days later.

City	Distance	Date	Difference
Tula	95 km	27 May – 25 June	2 days later
Moscow	161 km	22 May – 24 June	3 days earlier
Oryol	174 km	25 May – 26 June	same day
Bryansk	190 km	25 May – 30 June	same day
Ryazan	221 km	23 May – 3 July	2 days earlier
Tver	260 km	27 May – 20 June	2 days later

Where to buy tomato plants and seeds near Kaluga

Buy plants ready to set out from 25 May to 21 June (from 4 May to 21 June for an unheated greenhouse); seed for raising your own is sown from 13 March to 30 April. Within 15 km of Kaluga OpenStreetMap lists 19 garden centres, 1 plant nursery, 11 markets and 1 farm shop (collected 27 October 2026).

Гавриш — garden centre
Грабцевское шоссе 21 · 1 km
Садовый центр — garden centre
улица Анненки 47 · 7 km
6 соток — garden centre
Mon–Fri 10:00–19:00 · 1 km
Сад и огород — garden centre
Mon–Fri 09:00–18:30; Sat, Sun 09:00–17:00 · 2 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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