When to plant hyacinths in Ulan-Ude: 30 August – 7 October

In Ulan-Ude, hyacinth: plant from 30 August to about 7 October. For planting stock, the places nearby include Сагаан Дали (farm shop, 6 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 Ulan-Ude: soil, season and weather

Nights then average below 0 °C in October–April; the coldest, January, averages -25.4 °C.

Planting	30 August – 7 October
First autumn frost	29 September
Coldest nights	January, -25.4 °C
Soil back at 1 °C in spring	5 April
Daylight	13:45 on 30 August
Daylight at the winter solstice	7:46

The same dates in Ulan-Ude hold for Garlic, Tulip, Daffodil and Crocus.

Hyacinth in Ulan-Ude: 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 Ulan-Ude the average daily temperature stays at 10 °C or lower for about 33 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 Ulan-Ude, Chita is 6 days earlier and Blagoveshchensk 4 days later.

City	Distance	Date	Difference
Irkutsk	231 km	31 August – 8 October	1 day later
Chita	404 km	24 August – 3 October	6 days earlier
Krasnoyarsk	1,069 km	28 August – 7 October	2 days earlier
Novokuznetsk	1,387 km	31 August – 10 October	1 day later
Blagoveshchensk	1,399 km	3 September – 9 October	4 days later
Kemerovo	1,465 km	27 August – 8 October	3 days earlier

Where to buy hyacinth for planting in Ulan-Ude

Planting stock goes into the ground from 30 August to about 7 October; buy it before that. Within 15 km of Ulan-Ude OpenStreetMap lists 1 garden centre and 1 farm shop (collected 27 October 2026).

Сагаан Дали — farm shop
Зеленоградская улица 3А · 6 km
Семена — garden centre
11 km

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