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When to plant hyacinths in Kovel: 11 October – 10 December

In Kovel, hyacinth: plant from 11 October to about 10 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.

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 Kovel: soil, season and weather

Nights then average below 0 °C in December–March; the coldest, January, averages -4 °C.

Planting11 October – 10 December
First autumn frost10 November
Coldest nightsJanuary, -4 °C
Soil back at 1 °C in springalready in the first week of January
Daylight11:01 on 11 October
Daylight at the winter solstice7:53

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

Hyacinth in Kovel: 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 Kovel 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 Kovel, Lutsk is 20 days earlier and Rivne 6 days later.

CityDistanceDateDifference
Lutsk68 km21 September – 10 December20 days earlier
Brest120 km14 October – 12 December3 days later
Rivne127 km17 October – 7 December6 days later
Pinsk138 km30 September – 4 December11 days earlier
Lviv161 km13 October – 10 December2 days later
Drohobych224 km21 September – 7 December20 days earlier

Where to buy hyacinth for planting in Kovel

Planting stock goes into the ground from 11 October to about 10 December; buy it before that. Within 15 km of Kovel OpenStreetMap lists 2 markets (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant hyacinths in Kovel?

In Kovel, hyacinth: plant from 11 October to about 10 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 Kovel?

Last spring frost around 20 April, first autumn frost around 10 November.

Other crops in Kovel, with their dates