Greenly Garden

When to plant watermelons in Vanadzor: 23 May – 16 June

In Vanadzor, watermelon: sow for seedlings from 4 April to 19 May; plant into a greenhouse from 2 May to 16 June; plant out into open ground from 23 May to 16 June. For plants and seeds, the places nearby include Nalbandyan Agro (farm supply, 1 km); addresses and opening hours are below.

Watermelon in Vanadzor: soil, season and weather

In the median year the top 7 cm of soil in Vanadzor does not reach 18 °C, the minimum on the watermelon card, before August; the date follows the last frost (16 May), and the bed stays cooler than the card asks.

Last spring frost16 May
Into an unheated greenhouse2 May – 16 June; May outside: 1.6 °C at night, 10.8 °C by day; card 18–35 °C
First autumn frost25 September, 125 days after the start
Days in the bed to the first harvest (card)59
First harvest, if planted in this window21 July – 14 August
Days left for picking66
Daylight13:42 on 25 April, 14:41 on 23 May
Watering outdoors when fruiting (card)every 5 days; the driest month, August, has 15 rainy days

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

Watermelon in Vanadzor: care after planting

Planted on 23 May: in the first weeks water every 5 days.

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

  • 23 May — 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 Vanadzor during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 17.8 °C. Months that stay below 18 °C even by day on average: May–September (10.8–17.8 °C). Nights average below 18 °C in every month of the season, from 1.6 °C to 8.6 °C.

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
May10.81.61752414:26
June14.96.31822315:05
July178.51211914:50
August17.88.6681513:50
September14.15.51001512:31

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Vanadzor, Ganja is 23 days earlier and Vladikavkaz 36 days later.

CityDistanceDateDifference
Gyumri54 km11 June – 11 July19 days later
Yerevan70 km29 May – 24 July6 days later
Tbilisi104 km24 May – 6 August1 day later
Ganja158 km30 April – 1 September23 days earlier
Kutaisi220 km23 May – 10 Septembersame day
Vladikavkaz248 km28 June – 13 July36 days later

Where to buy watermelon plants and seeds near Vanadzor

Buy plants ready to set out from 23 May to 16 June (from 2 May to 16 June for an unheated greenhouse); seed for raising your own is sown from 4 April to 19 May. Within 15 km of Vanadzor OpenStreetMap lists 1 farm-supply shop, 1 plant nursery and 2 markets (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

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

When to plant watermelons in Vanadzor?

In Vanadzor, watermelon: sow for seedlings from 4 April to 19 May; plant into a greenhouse from 2 May to 16 June; plant out into open ground from 23 May to 16 June.

When to sow watermelons for seedlings in Vanadzor?

Sow for seedlings from 4 April to 19 May.

When is the last spring frost in Vanadzor?

Last spring frost around 16 May, first autumn frost around 25 September.

Other crops in Vanadzor, with their dates