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When to plant hyacinths in Bydgoszcz: 13 October – end of December

In Bydgoszcz, hyacinth: plant from 13 October to the end of December. For planting stock, the places nearby include Szkółka Krzewów Ozdobnych (garden centre, 3 km) and GRENE (farm supply, 4 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 average daily temperature here stays above 0 °C all winter, and at least three months average 7 °C or less: our rule of thumb for the winter cold spring bulbs need. Sources: Iowa State University Extension, Wisconsin Horticulture Extension, UNH Extension, RHS.

Hyacinth in Bydgoszcz: soil, season and weather

Nights then average below 0 °C in December–February; the coldest, January, averages -1.9 °C.

Planting13 October – end of December
First autumn frost12 November
Coldest nightsJanuary, -1.9 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:49 on 13 October
Daylight at the winter solstice7:32

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

Hyacinth in Bydgoszcz: 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 Bydgoszcz the average daily temperature stays at 10 °C or lower for about 27 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 Bydgoszcz, Łódź is 8 days earlier and Gdańsk 7 days later.

CityDistanceDateDifference
Poznań107 km17 October – end of December4 days later
Gdańsk143 km20 October – end of December7 days later
Olsztyn179 km17 October – 16 December4 days later
Łódź180 km5 October – 22 December8 days earlier
Zielona Góra214 km14 October – end of December1 day later
Warsaw225 km18 October – 27 December5 days later

Where to buy hyacinth for planting in Bydgoszcz

Planting stock goes into the ground from 13 October to the end of December; buy it before that. Within 15 km of Bydgoszcz OpenStreetMap lists 7 garden centres, 1 farm-supply shop, 2 plant nurseries and 9 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Bydgoszcz?

In Bydgoszcz, hyacinth: plant from 13 October to the end of December. 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 Bydgoszcz?

Last spring frost around 20 April, first autumn frost around 12 November.

Other crops in Bydgoszcz, with their dates