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When to plant hyacinths in Zielona Góra: 14 October – end of December

In Zielona Góra, hyacinth: plant from 14 October to the end of December. For planting stock, the places nearby include Szkółka Drzew i Krzewów Ozdobnych Przylep (plant nursery, 6 km) and Szkółka roślin Przytok (plant nursery, 8 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 Zielona Góra: soil, season and weather

Nights then average below 0 °C in January, February; the coldest, January, averages -1.7 °C.

Planting14 October – end of December
First autumn frost13 November
Coldest nightsJanuary, -1.7 °C
Soil back at 1 °C in springalready in the first week of January
Daylight10:48 on 14 October
Daylight at the winter solstice7:45

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

Hyacinth in Zielona Góra: 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 Zielona Góra the average daily temperature stays at 10 °C or lower for about 26 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 Zielona Góra, Liberec is 12 days earlier and Potsdam 8 days later.

CityDistanceDateDifference
Poznań110 km17 October – end of December3 days later
Liberec134 km2 October – 7 December12 days earlier
Wrocław140 km12 October – end of December2 days earlier
Berlin157 km20 October – end of December6 days later
Dresden157 km19 October – end of December5 days later
Potsdam175 km22 October – end of December8 days later

Where to buy hyacinth for planting in Zielona Góra

Planting stock goes into the ground from 14 October to the end of December; buy it before that. Within 15 km of Zielona Góra OpenStreetMap lists 9 garden centres, 3 plant nurseries and 1 farm shop (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Zielona Góra?

In Zielona Góra, hyacinth: plant from 14 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 Zielona Góra?

Last spring frost around 16 April, first autumn frost around 13 November.

Other crops in Zielona Góra, with their dates