When to plant garlic in Olsztyn: 17 October – 16 December

In Olsztyn, garlic: plant from 17 October to about 16 December.

Garlic is best planted early in the window: cloves planted late make smaller bulbs. Late planting works only while the soil is not frozen. 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: UVM Extension, UNH Extension, RHS, how the ground freezes (NRC Canada, CBD-26).

Garlic in Olsztyn: soil, season and weather

Garlic goes into the ground in Olsztyn from 17 October to about 16 December; the window opens a month before the first autumn frost. Nights then average below 0 °C in December–March; the coldest, January, averages -3.5 °C.

Planting	17 October – 16 December
First autumn frost	16 November
Coldest nights	January, -3.5 °C
Soil back at 5 °C in spring	24 March
Harvest (card)	about 8 months after planting: June
Daylight	10:30 on 17 October
Daylight at the winter solstice	7:25

The same dates in Olsztyn hold for Tulip, Daffodil, Crocus and Hyacinth.

Garlic in Olsztyn: care after planting

Planted on 17 October: in the first weeks water every 7 days.

Feeding, by the card’s schedule from that day:

17 October — feed: nitrogen
14 November — feed: nitrogen

Pests and diseases of garlic to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Garlic in nearby cities

Around Olsztyn, Toruń is 4 days earlier and Gdańsk 3 days later.

City	Distance	Date	Difference
Kaliningrad	103 km	15 October – 30 December	2 days earlier
Gdańsk	135 km	20 October – end of December	3 days later
Toruń	151 km	13 October – end of December	4 days earlier
Gdynia	151 km	20 October – end of December	3 days later
Warsaw	176 km	18 October – 27 December	1 day later
Bydgoszcz	179 km	13 October – end of December	4 days earlier

Where to buy garlic for planting in Olsztyn

Planting stock goes into the ground from 17 October to about 16 December; buy it before that. Within 15 km of Olsztyn OpenStreetMap lists 2 garden centres, 1 plant nursery, 5 markets and 2 farm shops (collected 28 October 2026).

Targowisko przy ul. Grunwaldzkiej — market
Tue, Fri, Sat 06:00–14:00 · 1 km · zdzit.olsztyn.eu
Pchli targ "Flumark" — market
Aleja Sybiraków, Olsztyn · Sun 9:00–15:00 · 2 km
Targowisko przy ul. Żurawskiego — market
Mon–Sat 06:00–16:00 · 5 km · zdzit.olsztyn.eu
Targowisko przy ul. Kolejowej — market
Mon–Sat 06:00–16:00 · 1 km · zdzit.olsztyn.eu

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