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General spinach calendar

Starogard Gdański, Polska · 53.97°

When to plant spinach in Starogard Gdański

The Starogard Gdański dates are calculated from the observed last spring frost — a 2016–2025 mean of 26 April — rather than from a latitude estimate or a national calendar. The frost-free season here averages 204 days.

Season anchorobserved 2016–2025

Last spring frost: 26 April · latest 14 May

First autumn frost: 16 November · earliest 21 Oct

Frost-free season: 204 days · 10 complete years

These come from the ERA5 reanalysis on a roughly 9 km grid, so they describe the area rather than your plot. A hollow, a frost pocket or an exposed site regularly runs several degrees colder, so use the cautious date for a decision you cannot undo.

Frost date estimator

Local calendar windows

Sow outdoors22 March – 17 May9 April – 4 June
Second outdoor sowing20 July – 13 September7 August – 1 October
Approximate harvest5 June – 25 June23 June – 13 July

The cautious column is calculated from the latest frost recorded in the period (14 May). Use it for tender crops you cannot re-sow.

The year in Starogard Gdański

What can move the date

Spring and autumn only — long summer days trigger bolting no matter how well you water. An autumn sowing under fleece overwinters for a very early spring pick.

Final spacing: 15 × 30 cm. Soil: pH 6.5–7.5.

Direct-sow only once the soil holds 5°C or more — soil temperature decides germination, not the date.

Problems in Starogard Gdański

Each has its locally favourable conditions counted month by month, from the weather archive for this city.

Full guide: spinach diseases and pests →

Guides connected to this crop

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