When to plant watermelons in Smolensk: 17 June – 3 July

In Smolensk, watermelon: sow for seedlings from 29 April to 5 June; plant into a greenhouse from 27 May to 3 July; plant out into open ground from 17 June to 3 July. For plants and seeds, the places nearby include Магнит (farm shop, 2 km); addresses and opening hours are below.

Watermelon in Smolensk: soil, season and weather

In Smolensk the soil, not frost, sets the date: the last frost is over around 4 May, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 17 June, 44 days later. 117 days separate planting out (17 June) from the first autumn frost (12 October); the card's 59 days to the first harvest leave 58 for picking, so a start 8 weeks late would still fit.

Last spring frost	4 May
Top 7 cm of soil at 18 °C	17 June, 44 days after the last frost
Into an unheated greenhouse	27 May – 3 July; May outside: 6.5 °C at night, 16.8 °C by day; card 18–35 °C
First autumn frost	12 October, 117 days after the start
Days in the bed to the first harvest (card)	59
First harvest, if planted in this window	15 August – 31 August
Days left for picking	58
Daylight	16:21 on 20 May, 17:18 on 17 June
Watering outdoors when fruiting (card)	every 5 days; the driest month, September, has 9 rainy days

The same dates in Smolensk hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Smolensk: care after planting

Planted on 17 June: in the first weeks water every 5 days.

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

17 June — feed: balanced (NPK)

Pests and diseases of watermelon 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 Smolensk during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, July, averages 22.7 °C. Months that stay below 18 °C even by day on average: September (17 °C) and October (9.8 °C). Nights average below 18 °C in every month of the season, from 3.6 °C to 13.9 °C.

Month	Day, °C	Night, °C	Rain, mm	Rainy days	Daylight on the 15th
June	21.9	12.1	84	13	17:17
July	22.7	13.9	100	16	16:48
August	22.5	13	74	11	15:00
September	17	8.6	59	9	12:47
October	9.8	3.6	68	13	10:35

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Smolensk, Barysaw is 11 days earlier and Vitebsk 1 day later.

City	Distance	Date	Difference
Orsha	110 km	12 June – 2 July	5 days earlier
Vitebsk	127 km	18 June – 7 July	1 day later
Mogilev	148 km	9 June – 8 July	8 days earlier
Polatsk	222 km	11 June – 11 July	6 days earlier
Bryansk	224 km	11 June – 11 July	6 days earlier
Barysaw	237 km	6 June – 11 July	11 days earlier

Where to buy watermelon plants and seeds near Smolensk

Buy plants ready to set out from 17 June to 3 July (from 27 May to 3 July for an unheated greenhouse); seed for raising your own is sown from 29 April to 5 June. Within 15 km of Smolensk OpenStreetMap lists 2 garden centres, 1 plant nursery, 8 markets and 1 farm shop (collected 27 October 2026).

Универсальный рынок — market
Mon–Sun 09:00–20:00 · 1 km
Заднепровский рынок — market
улица Беляева 1 · 2 km
Фрэш Маркет — market
улица Шевченко 78А · 2 km
Магнит — farm shop
улица 2-й Верхний Волок 27, Смоленск · 09:00–22:00 · 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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