Poland's agricultural calendar is shaped by a temperate climate with strong continental influences in the east and more Atlantic conditions in the west. The difference between Wrocław and Białystok in spring arrival can be two to three weeks, which directly affects sowing and harvest schedules. This calendar reflects conditions typical for central Poland; regional deviations are noted where they are most pronounced.
April – May: Spring Vegetables and Early Crops
The growing season begins in earnest from mid-April, when soil temperatures in central Poland consistently exceed 8–10°C. Spring-sown crops — barley, oats, maize — are established during this period. For harvestable produce, the first crops to appear are:
- Early spinach and radish from outdoor fields — typically ready from late April in the south and west, mid-May in the northeast.
- Greenhouse tomatoes and cucumbers — grown under heated glass throughout the year; spring outdoor-heated-tunnel crops begin harvest in late May.
- Asparagus — a relatively small but growing crop in Poland; harvest runs from late April through late June in established plantations. Notable production in Masovian and Lesser Poland voivodeships.
- Tunnel strawberries — unheated tunnel crops in the Lublin region begin in late April to early May, three to four weeks ahead of field crops.
Lublin Voivodeship accounts for a substantial share of Poland's field strawberry output. The region's loamy-sandy soils and the Lublin Upland microclimate are particularly suited to the crop, supporting a dense concentration of farms in counties such as Puławy and Lublin.
June – July: Peak Small Fruit and Grain Harvest
June marks the start of Poland's most intensive harvest period. Two distinct harvest streams run simultaneously: soft fruit and early grain.
Strawberries (Field)
Field strawberry harvest typically runs from late May through the end of June in the Lublin region, and into early July in the northern voivodeships. Poland is one of the largest strawberry producers in the EU, with output concentrated heavily in the east-central region. The crop is highly weather-sensitive: a wet June delays picking and increases botrytis pressure; a dry June with moderate temperatures produces the most concentrated harvest window.
Cherries and Early Soft Fruit
Sweet cherries ripen in late June in the south and first half of July in Masovian and Łódź voivodeships. Currants — black, red, and white — follow in July, with black currant peaking between 10 and 20 July in typical years. Poland is one of Europe's largest black currant exporters; the majority is processed into concentrate.
Winter Rye
Winter rye is typically the first grain harvested in Poland, with cutting starting in late June in the south and southwest. In Warmian-Masurian and Podlaskie voivodeships — where rye cultivation is most concentrated due to lighter soils — harvest runs through July. Rye is a drought-tolerant crop well suited to northeastern Poland's sandy soils.
Winter Wheat and Oilseed Rape
Oilseed rape harvest runs from late June through mid-July, depending on region. It precedes wheat slightly on the calendar. Winter wheat — Poland's most important grain crop by volume — is combined through July and into early August. The peak of the national wheat harvest typically falls in the second and third weeks of July in the main production belt across Kuyavian-Pomeranian, Masovian, and Lublin voivodeships.
| Crop | Typical Start | Typical End | Primary Voivodeships |
|---|---|---|---|
| Winter Rye | Late June | Late July | Warmian-Masurian, Podlaskie, Masovian |
| Oilseed Rape | Late June | Mid-July | Kuyavian-Pomeranian, Greater Poland, Opole |
| Winter Wheat | Early July | Early August | Lublin, Masovian, Kuyavian-Pomeranian |
| Field Strawberries | Late May | Early July | Lublin, Masovian, Łódź |
| Black Currants | Early July | Late July | Masovian, Łódź, Lublin |
| Sweet Cherries | Late June | Late July | Masovian, Lesser Poland, Łódź |
August: Apples, Maize, and Vegetables
August is the month when summer apple varieties begin to arrive from orchards, early potato maincrop harvest intensifies, and the principal vegetable harvest is in full swing.
Apples
Poland's apple industry is centred on Masovian Voivodeship, particularly Grójec County, which is one of the largest apple-growing areas in Europe. Early and mid-season varieties (such as Lobo, Paulared, and Cortland) are harvested from August through September. Late storage varieties — Jonagold, Idared, Ligol, Fuji — are left on the tree until October and kept in controlled-atmosphere storage through winter and into spring.
Potatoes
Early potato varieties are harvested from July. Maincrop potato harvest — which represents the bulk of national production — runs from August through October. Łódź, Masovian, and Lublin voivodeships are the main production regions. Poland's potato sector produces both fresh-market and processing varieties, with a significant share going to starch and chip manufacturers.
Vegetables
August marks the peak of outdoor vegetable production. Onions are typically lifted and field-dried in August, then transferred to storage in September. Carrots for fresh market are harvested from August; storage carrots are left until September–October. Cabbage — both summer and autumn types — is cut throughout August and September, with late varieties intended for sauerkraut production harvested in October–November.
September – October: Root Crops and Late Season
Autumn harvest extends well into October for several major crops. Sugar beet — one of Poland's most important industrial crops — is lifted from September through November in a coordinated campaign managed in close coordination with sugar factories. The campaign is tightly scheduled to match factory processing capacity; farmers receive contracted delivery windows.
Late-season apples, storage potatoes, storage carrots, and leeks are all harvested in this period. Maize harvested for grain drying runs from October into November depending on the year's drying conditions.
November – March: Storage and Post-Harvest
By November, field harvests are largely complete. The agricultural calendar shifts to storage management, winter crop establishment, and preparation for the following season. Winter wheat and rye sown in September–October are visible in the fields as low green cover through winter. Root vegetables and apples stored in controlled-atmosphere facilities remain commercially available through winter and spring.