When to plant tomatoes in Liberec: 31 May – 12 July

In Liberec, tomato: sow for seedlings from 19 March to 21 May; plant into a greenhouse from 10 May to 12 July; plant out into open ground from 31 May to 12 July. For plants and seeds, the places nearby include HECHT (garden centre, 2 km) and Náš grunt (farm shop, 14 km); addresses and opening hours are below.

Tomato in Liberec: soil, season and weather

In Liberec the soil, not frost, sets the date: the last frost is over around 25 April, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 31 May, 36 days later.

Last spring frost	25 April
Top 7 cm of soil at 15 °C	31 May, 36 days after the last frost
Into an unheated greenhouse	10 May – 12 July; May outside: 7.3 °C at night, 16.4 °C by day; card 16–27 °C
First autumn frost	1 November, 154 days after the start
Days in the bed to the first harvest (card)	70
First harvest, if planted in this window	9 August – 20 September
Days left for picking	84
Daylight	13:25 on 9 April, 16:09 on 31 May
Watering outdoors when fruiting (card)	every 3 days; the driest month, November, has 12 rainy days

Tomato in Liberec: care after planting

Planted on 31 May: in the first weeks water every 4 days.

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

31 May — feed: balanced (NPK)
28 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 Liberec during the tomato season

No month of the season averages above the tomato card's 16–27 °C by day; the warmest, August, averages 22.5 °C. Months that stay below 16 °C even by day on average: October (12.4 °C) and November (5.7 °C). Nights average below 16 °C in every month of the season, from 1 °C to 13.4 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
May	16.4	7.3	79	13	15:29
June	21.6	12.3	94	14	16:28
July	22.3	13.2	84	14	16:05
August	22.5	13.4	95	13	14:35
September	18.2	10.1	75	10	12:42
October	12.4	6	78	14	10:47
November	5.7	1	60	12	8:59

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Liberec, Zielona Góra is 22 days earlier and Ústí nad Labem 4 days later.

City	Distance	Date	Difference
Ústí nad Labem	74 km	4 June – 23 July	4 days later
Hradec Králové	83 km	21 May – 22 July	10 days earlier
Prague	88 km	12 May – 19 July	19 days earlier
Pardubice	96 km	21 May – 21 July	10 days earlier
Dresden	98 km	25 May – 29 July	6 days earlier
Zielona Góra	134 km	9 May – 24 July	22 days earlier

Where to buy tomato plants and seeds near Liberec

Buy plants ready to set out from 31 May to 12 July (from 10 May to 12 July for an unheated greenhouse); seed for raising your own is sown from 19 March to 21 May. Within 15 km of Liberec OpenStreetMap lists 1 garden centre, 2 plant nurseries, 1 market and 1 farm shop (collected 28 October 2026).

HECHT — garden centre
Dr. Milady Horákové 11/76, 46007 Liberec · Mon–Sun 08:00–20:00 · 2 km · hecht.cz
Náš grunt — farm shop
Mon–Thu 06:00–19:00; Fri 06:00–20:00; Sat 07:00–17:00; Sun 08:00–19:00 · 14 km
Školka Na Vládní — plant nursery
6 km
Zahradnictví — plant nursery
15 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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