When to plant hyacinths in Petrozavodsk: 17 September – 24 October

In Petrozavodsk, hyacinth: plant from 17 September to about 24 October. For planting stock, the places nearby include Клевер (garden centre, 1 km) and Клевер (garden centre, 2 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 Petrozavodsk: soil, season and weather

Nights then average below 0 °C in November–April; the coldest, January, averages -10.4 °C.

Planting	17 September – 24 October
First autumn frost	17 October
Coldest nights	January, -10.4 °C
Soil back at 1 °C in spring	23 April
Daylight	12:50 on 17 September
Daylight at the winter solstice	5:14

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

Hyacinth in Petrozavodsk: 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 Petrozavodsk the average daily temperature stays at 10 °C or lower for about 35 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 Petrozavodsk, Arkhangelsk is 9 days earlier and Saint Petersburg 3 days later.

City	Distance	Date	Difference
Saint Petersburg	299 km	20 September – 10 November	3 days later
Cherepovets	353 km	17 September – 25 October	same day
Veliky Novgorod	400 km	19 September – 10 November	2 days later
Vologda	415 km	10 September – 25 October	7 days earlier
Arkhangelsk	438 km	8 September – 20 October	9 days earlier
Helsinki	538 km	20 September – 25 November	3 days later

Where to buy hyacinth for planting in Petrozavodsk

Planting stock goes into the ground from 17 September to about 24 October; buy it before that. Within 15 km of Petrozavodsk OpenStreetMap lists 8 garden centres and 2 farm shops (collected 27 October 2026).

Всё для сада — garden centre
2 km
Дачник — garden centre
2 km
Магазин "ПетрозаводскМаш-ТНП" — garden centre
4 km
Олония — farm shop
1 km
Ландшафт — garden centre
Mon–Fri 09:00–19:00; Sat, Sun 09:00–18:00 · 7 km
Клевер — garden centre
Mon–Sun 10:00–20:00 · 1 km
Клевер — garden centre
Mon–Fri 10:00–19:00; Sat, Sun 11:00–17:00 · 2 km
Крокус — garden centre
Mon–Fri 11:00–20:00; Sat 11:00–18:00; Sun 11:00–17:00 · 2 km

Questions