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When to plant hyacinths in Gyumri: 20 September – 23 November

In Gyumri, hyacinth: plant from 20 September to about 23 November.

Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

The date is about two weeks before the average daily temperature here falls below 0 °C (ten years of weather): an estimate, not the day the ground freezes, and a cold spell can freeze it earlier. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Hyacinth in Gyumri: soil, season and weather

Nights then average below 0 °C in November–March; the coldest, January, averages -9.7 °C.

Planting20 September – 23 November
First autumn frost20 October
Coldest nightsJanuary, -9.7 °C
Soil back at 1 °C in spring5 March
Daylight12:17 on 20 September
Daylight at the winter solstice9:15

The same dates in Gyumri hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Gyumri: depth, winter cold, pests and pets

Plant hyacinths 10 cm deep, at least 7.5 cm apart (RHS). In the ground hyacinths are fully hardy, but in containers they can be frost tender in cold winters (RHS); here winter nights average below 0 °C, so wrap the pots or move them to a sheltered spot.

In Gyumri the average daily temperature stays at 10 °C or lower for about 28 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 12–15 weeks at about 2–10 °C. The winter here gives that in the ground, so the bulbs need no pre-chilling.

Flowers get smaller in the years after planting: for full spikes, replace the bulbs or add a few new ones each autumn (RHS).

If squirrels are a problem, protect the bulbs with wire mesh (RHS). Hyacinths are toxic to dogs, cats and horses: intense vomiting and diarrhoea (ASPCA).

Sources: RHS, Wisconsin Horticulture Extension, ASPCA.

Hyacinth in nearby cities

Around Gyumri, Vanadzor is 25 days earlier and Kutaisi 61 days later.

CityDistanceDateDifference
Vanadzor54 km26 August – 29 October25 days earlier
Yerevan88 km3 October – 4 December13 days later
Tbilisi130 km16 October – end of December26 days later
Kutaisi190 km20 November – end of December61 days later
Batumi208 kmby 13 November54 days later
Ganja212 km11 November – end of December52 days later

Where to buy hyacinth for planting in Gyumri

Planting stock goes into the ground from 20 September to about 23 November; buy it before that. Within 15 km of Gyumri OpenStreetMap lists 6 markets (collected 27 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Gyumri?

In Gyumri, hyacinth: plant from 20 September to about 23 November. Bulbs are best planted early in the window: late-planted bulbs may flower later or less well. Late planting works only while the soil can be dug. Mulch after planting.

When is the last spring frost in Gyumri?

Last spring frost around 27 April, first autumn frost around 20 October.

Other crops in Gyumri, with their dates