When to plant hyacinths in Irkutsk: 31 August – 8 October

In Irkutsk, hyacinth: plant from 31 August to about 8 October. For planting stock, the places nearby include Гидропосев38 (farm supply, 2 km) and Огород38.ру (farm supply, 3 km); addresses and opening hours are below.

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 Irkutsk: soil, season and weather

Nights then average below 0 °C in October–April; the coldest, January, averages -23.7 °C.

Planting	31 August – 8 October
First autumn frost	30 September
Coldest nights	January, -23.7 °C
Soil back at 1 °C in spring	6 April
Daylight	13:43 on 31 August
Daylight at the winter solstice	7:42

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

Hyacinth in Irkutsk: 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 Irkutsk the average daily temperature stays at 10 °C or lower for about 34 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

1 of the nearest cities share Irkutsk's date.

City	Distance	Date	Difference
Ulan-Ude	231 km	30 August – 7 October	1 day earlier
Chita	627 km	24 August – 3 October	7 days earlier
Krasnoyarsk	851 km	28 August – 7 October	3 days earlier
Novokuznetsk	1,156 km	31 August – 10 October	same day
Kemerovo	1,238 km	27 August – 8 October	4 days earlier
Tomsk	1,330 km	28 August – 8 October	3 days earlier

Where to buy hyacinth for planting in Irkutsk

Planting stock goes into the ground from 31 August to about 8 October; buy it before that. Within 15 km of Irkutsk OpenStreetMap lists 10 garden centres, 5 farm-supply shops, 1 plant nursery, 11 markets and 1 farm shop (collected 7 October 2026).

Свердловский рынок — market
Tue–Sat 09:00–19:00 · 4 km
Гидропосев38 — farm supply
Mon–Fri 09:00–19:00 · 2 km · gidroposev38.ru
Огород38.ру — farm supply
Mon–Fri 09:00–17:00; Sat 09:00–16:00 · 3 km · ogorod38.ru
Клумба — farm supply
Mon–Sat 10:00–19:00 · 9 km · klumbairk.ru
Росток — farm supply
Mon–Fri 10:00–17:00; Sat 10:00–15:00 · 7 km
Корма от фермера — farm supply
Mon–Sun 09:00–19:40 · 8 km
Санами — plant nursery
Mon–Sun 10:00–19:00 · 7 km · ldsanami.ru
Гурман — farm shop
Mon–Sun 09:00–21:00 · 4 km

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